I was a 63-year-old overweight bald man named Dr. Jake L. Edih, virtually ignored for my looks, which was okay with me. Being a professor at an ivory league university, I have spent the majority of my adult life doing research in biomechanics. My wife and I married after our senior year at Princeton she was the only woman I ever dated or had sex with for 36 years. Together we produced one daughter and two grandchildren. She passed away 4 years ago and since that time most of my time has been spent on my work, I had no desire to date or even go out socially. Things change. I've changed.

In layman terms my work involved using a normal person's electronic brain impulses to stimulate and bring a patient out of a coma or catatonic state. My assistant was a graduate student named Burt Winters. Burt was a young good-looking guy, quite popular on campus. He took over teaching most of my classes and he probably has slept with all the good-looking female undergrads attending. Most men would probably feel envious, I really didn't care, I didn't even think about sex. In fact one night alone in bed I reflected on sex and that I didn't even have the desire to masturbate in years.

One night every thing changed. The completion of my life's work. The evolution of the device was a small square rectangular box with small copper disk on the back and a round lens in the center in the front. Most people would say it looked like a camera. It was held up to the head like a camera, however the copper disk would line up just under the frontal lobe. Simply put, when the button was pressed the persons amplified brain waves were sent like an electrical current from the center of the lens. This resulted like a flash camera and those brain waves would be received by the patient and "jump start" his brain, like one would with a car battery.

We tried it on monkeys, but the brainpower was too low, it had to be done by a human. Burt volunteered to be a test subject. I refused of course; this was science, not some old Frankenstein movie. That night about 6 pm we were celebrating which we hoped was the conclusion of our project. Burt brought a bottle of champagne and although I don't usually drink I had a glass. I would like to say I was drunk and blame it on that, however to be truthful, the drink only relaxed me enough to make a decision I secretly wanted. He coaxed me to try it on him, but when I refused, he had picked up the device and pointed it at me.

An hour later, I felt like I was daydreaming and then snapped awake. Burt told me that the device did more than what we thought it might do. He had actually been in my body. His mind was with mine; he saw his body standing around like a puppet with no mind to guide it. He had total control of my body and even felt the emotions and some of the memories that I had. It was nearly a shared mind experience with him in control. Getting nervous he pointed the device back to his body and returned to his mind. I vaguely remember doing what he told me but as if I was doing it in a drunk or stoned sleepy state. I had no recollection of him being in my mind, it was as if I decided to do those things.

We were quite excited and I then tried it on him. The device flashed and in as soon as the flash dissipated I was looking at my old body through Burt's eyes. I wasn't just wearing a costume however, I felt like Burt. His emotions, his thoughts were mine. I walked about the lab feeling strong and young again, I also felt horny. I noted that the two minds living in one brain must have a magnifying effect on stimulating the arousal lobes of the brain. I looked at my former body it was wavering like a drunk. I walked over and laid it down on one of the lab tables. I wanted to leave the room and go out doors; I didn't think Burt would mind me using his body for a bit. Everything felt new even taking deep breaths through his nose felt good. I left the lab and decided to take a walk through campus, although I actually sprinted and jumped a lot of the way, something I haven't done in 30 years.

"Hey Burt wait up". I turned to see Liz Domkins a stunning 20-year-old undergrad in one of my classes. As she approached my... er... Burt's cock started getting hard. His memories of fucking her swept through mine.

"Where you off to?"

"Hey Liz, Just taking a walk and you?"

"Looking for you stud."

Liz winked and snuggled up close to me. I spoke like Burt, even using the same vocabulary and syntax. I knew what he knew about her, but was still me. I never felt such sexual urges before. I was ready to rape her right here out side the hall with all these people walking about. But I was a professor, a reputable and cultured man, not some kid. I knew I had to return to the lab and give back Burt his body. I knew this but the desire was too strong.

"Lets go back to my place... you can tutor me some more" she said as she wrapped her arm around mine and we walked toward her campus apartment. I knew what she meant; Burt's memory of there three other tutoring sessions strained my (Burt's) cock against his tight jeans.

Liz didn't waste any time. As soon as she closed the door to her apartment behind us she wrapped her arms around me and sucked on my tongue. We both undressed each other; I was ripping the buttons off her blouse and exposed her 36C breasts. She undid Burt's belt and pulled down his jeans and briefs in one sweep. I looked down staring at the large hard cock. It was the first time I ever looked at another mans erect cock. It was several inches longer than mine then it was gone, engulfed by that lovely mouth of Liz's. This was my first real blowjob. I was married for so many years, but it was always missionary position, and my wife, bless her soul, was not adventurous when it came to sex.

Liz sucked on Burt's cock, my knees felt weak and I fell back on to the bed while her lips kept gripped to my cock. The sexual arousal was stimulating my entire being, I was started to think about the pleasure areas of the brain and what would show on a CAT scan but soon even I had a hard time thinking and just gave into the pleasure. Liz must enjoy it; she never stopped taking the large penis deep into her throat. I placed my (Burt's) hands on her head pushing more of the cock into her mouth. I didn't just cum, I exploded and not just with jism from the cock, my flashes like fireworks in my eyes and then an overwhelming rush of pleasure that I never experience. Not just me, no human. I am sure it couldn't even be on the scale of a heroin addict's initial rush.

Liz swallowed the cum and wiped her lips. Then sensation wore off but not the arousal, I wanted more. I pulled her on top of me and flipped us over. I sat up looking down at this beautiful young woman and the cock was instantly hard again.

"Jeez Burt... still hard?"

I didn't say a word, but pulled her body toward my cock and filled her pussy. I couldn't believe the stamina Burt had or was it the brain's arousal. I fucked her hard and fast, Liz was gasping rolling her eyes toward the back of head in pleasure. I bit on her nipples while maintaining a fast and furious pumping of her pussy. I pulled out quickly and turned her over replacing my cock into her pussy as quick as I could, missing just a beat or two. I watched her tight round ass bouncing on the cock. I spanked her butt with a few slaps finally grabbing it holding my cock deep in her cunt as I came again. The same sensations happened. The pleasure was just as rewarding as the last time.

Liz was exhausted to say the least. She gasped "Burt... honey... that was... oh my... I think I came 4 times... I never... oh jeez." She then fell asleep. I took a shower and while soaping the Burt's body I got hard again. I handled the cock with wonder; I was actually getting horny again. As I got dressed I reached into the jacket pocket and felt the device. I looked at clock, it was nearly 11o'clock, and I was gone nearly 5 hours. What would Burt say? He would know what I did. I would be a laughing stock. The fuddy duddy professor using his research to have sex with coeds. I couldn't return his body, besides which I realized I didn't want to and on that thought my cock... yes MY COCK, got hard again. I would not let go of this power or pleasure.

I knew someone would discover my old body at the lab, awake but unconscious. They would question me as Burt. I could snatch another body and then another, virtually living forever. Snatch, I needed sex, but I couldn't just spend all night looking for women to fuck I needed to plan my future. Snatch, speaking of snatch I saw Liz sprawled over the bed. I could take her body. Being a heterosexual in a female body should keep my sex desires under control so I can plan out what to do with my new extended life. I took out the camera device and aimed it at Liz. FLASH.

Part Two

As Liz I felt sore and a little tired, but I started feeling more and more energetic. Burt's mind was slowly taking control of his body once again since the dominant mind was transferred out. I put in the bed and gave him a sleeping pill. This would give me few hours head start. When he awoke, he would either tell an incredible story that no one would believe or he would tell the story that an experiment backfired making Professor Edih a vegetable. Having been intimate with his mind, I knew he would choose the latter, and probably steal my notes on the project to build another device. Although a bright grad student, I knew he would never succeed. It was chance that caused the device to be able to put someone's mind into another's body.

I was now a female; I knew what to do because I was partially Liz. I cleaned my self-up and dressed. I was going to seek another male body. I wanted the best physically shaped body I could find and decided to head out toward the frat house where the football team was housed.

Liz was familiar with this frat house. She had been to several parties there and had dated one of the guys, Vincent. Liz liked to fuck and I knew instantly all the sex she has had. Being in her body was fascinating to me. I walked like her, shook her ass to guys she passed in the hall like she did. I planned to find the body I wanted, and then I would leave the University. Hopefully the body I find will have some available funds, a credit card and a car.

Walking down the street I was greeted my many looks and leers by fellow students. I felt horny. The sexual arousal did not go away and although I had no penis to get hard and strain against my clothing, the vagina ached. It was a weird and new sensation to me. I mustered up any control I had to keep me from shoving my fingers into the pussy. As I walked my thighs rubbed against the pussy lips. What was I thinking? I needed some relief, I needed to get fucked.

This thought caught me off guard. I never entertained any homosexual thoughts the 63 years I lived as a man. Being in Liz's body along with the mind transfer that activates the sexual arousal part of the brain I was feeling desperately horny and the thought of a man having sex with this body didn't matter, it was about having a cock fuck the pussy so that it can feed on the pleasure that occurs from the orgasm. I realized it then that I was addicted to this feeling and that I would have to perfect the device.

As Liz I arrived at the frat house around midnight. Most of the football players were up and they were all very happy to invite this gorgeous body in for a few drinks. Most of the guys stood around talking to me. Then Vincent came over; one of his frat brothers probably fetched him from his room. Liz's memory of fucking Vincent played in my head like remember an old favorite movie with random highlights. Vincent leaned toward me and kissed Liz's lips. Part of me felt uncomfortable, but a stronger urge made me feel good. At that moment I knew I needed to fuck him.

"Lets go upstairs and talk a bit okay?" I grabbed his hand and he led the way upstairs to his room. I heard mumblings behind me of some of the guys saying, "damn", "shit", "hot". They all wanted me and my pussy was on fire in anticipation. Vincent was a second string receiver on the team and I knew he didn't have the body I wanted, but I had to extinguish this fire that was building up below.

"So Liz, why'd yaw come back here... thought you had the hoots for that teacher assistant"

Damn, all he wanted to do was talk. I just wanted a quick surge of the pleasure so I could continue my mission. Liz knew what to do and being a former guy, two former guys, I knew also. Vincent might want to talk, but he wasn't about to pass on some pussy.

I looked at him the sexy way Liz does to guys. I dropped the purse and undid the buttons on the blouse taking them off and unzipping the skirt allowing that to fall. I stood before him in a thong panties and lace bra. I walked toward him pouting my lips "did you really want to just talk?"

Vincent was a man of few words and he stepped out of his sweat pants kicking them across the room. While he was taking off his t-shirt I went down to my knees and looked at his cock. It wasn't as large as Burt's but I was hoping it would do the trick. Instinctively I licked the tip of the cock and sucked it into my mouth. I was remembering how Liz blew me and tried to replicate it. I wasn't thinking that I was sucking a man's cock, that would have repulsed me, instead I was concentrating on the pleasure by brain was receiving by doing this action and surprisingly the stimulus was very pleasurable and small fireworks were going on behind my eye lids. I didn't want him to cum in my mouth and pulled away. He threw me on the bed and dove between my legs. His tongue was licking my pussy and he was sucking on the clitoris, which intensified the pleasure.

"Fuck me Vinny... Fuck me hard" I yelled. Vinny then mounted me. The sensation of feeling a cock entering the pussy was fantastic. It's as if a missing piece finally found it's home. He rode me steadily fucking the pussy in and out calling me "bitch". I wasn't really paying attention of what he was saying; I was feeding on the pleasure sensations like an addict. I was on the verge of Cumming when all of a sudden Vincent stopped and groaned. I felt warmth fill the pussy, he came, but I didn't. I needed more.

"Do it some more... come on"

"Shit Liz, I am done... maybe later"

"No! I need more fucking, I didn't cum yet"

I was getting frantic. "Hey if you can't fucking finish the job then send in someone that will"

Vincent looked at me. There was no way he was going to admit to his frat brothers that he couldn't satisfy a woman. He fumed.

"Oh yeah" He got out of bed and walked out to the stop of the stairs. "Okay guys, I warmed her up, come and get it the line forms to the right"

At first I was scared. There must have been 30 guys downstairs and now I was going to get gang banged, well not me, Liz. What was I doing to her? She would never have normally done this type of thing. I started to get out of the bed when one of the larger black guys came into the room naked. He had the largest cock Liz or I have ever seen. I leaned back in the bed staring at it. He walked next to me said "hi Liz" and then shoved his 11inch cock in my mouth. I started thinking if I should choose this body; I wondered what it would be like to be a black man. He then pulled my face off of his cock and turned me over on all fours. He was still standing on the side of the bed as his cock stretched the pussy. As he was fucking me the fireworks began, this time bigger and brighter, I was having an Orgasm. I opened my eyes and saw another cock in front of me and started sucking it.

My brain was filled with pleasure, large fireworks. I had fucked all the guys in the house. Some two or three at a time, Liz's ass was even fucked several times for the first time in her life. I staggered out of the room; many of the frat guys were lying around the room. I saw a guy named Kenny. He played tight end. He was 6'2 with blonde hair blue eyes and very muscular, just the body I could use. I also found out he owned the Eclipse parked out front. I reached for the purse and pulled out the camera device. A couple of the guys reached out to me for they were ready to go again.

"Wait guys this is my first gang bang and I want to take a picture"

I aimed the device at Ken and pressed the button. FLASH!

Ken stood up and took the camera from Liz and gently pushed her into the arms of two of the Frat guys, Brad and Pete. I was now Ken and I headed to his room to get dressed, pack a few things and get in the car I considered fucking Liz before leaving but two of the guys were already doing that and the sexual arousal has so far been quenched. I don't know how long it would last, but in this body I would be able to pick up any number women to satisfy these urges. I needed to find a place to work undisturbed so I could perfect the device. I needed money, access to my bank account. I couldn't go back to my original apartment, I am sure the police had already been there. I decided that I would visit my daughter; she had an extra bankcard for my savings account.

Part Three

Kenny had $120 in his wallet and an ATM card in which I was able to withdraw $300 more. I drove the car to the airport and paid cash for a ticket to Boston where my daughter Tammy lived. I spoke with her a couple of weeks ago when I couldn't attend the funeral for her husband. She told me that she would be renting out the room that used to be my grandson Jim's. Jim enlisted in the Navy and was on the USS Carl Vinson for a few years. I called as Kenny and made up a story that I was one of professor Edih's lab students and that I was transferring to Boston University. I asked if the room was still available for rent for about a month. Luck was still with me and took the earliest flight out.

While waiting for the plane to board I was thinking about changes to the device. I had checked it with my luggage for even though it looked like an ordinary camera, the x-ray machine would view it as something very suspicious.

Although my mind was busy with equations, the rest of my brain still needed a pleasure fix. The uncomfortable erect penis pressing against my jeans was proof of that. Across from me was a very attractive woman in her early thirties wearing a business outfit. I had felt her glances on me and when our eyes connected she gave an embarrassed smile and looked away. I clutched my jacket in front of me to hide my erection and moved next to her.

I introduced myself as a University student visiting family up north. Her name was Evelyn Rasterdam, an attorney traveling on business. Her attraction to Ken's body was obvious and our conversation continued smoothly with small flirtations. I asked if it were okay to change my seat next to hers, the plane wasn't fully booked and this wouldn't be a problem. She was agreeable and soon we continued our conversation and flirtations through take off.

I played with her hair and she caressed my arm. I even moved in for a smooth light kiss on the lips. She asked about my age and I laughed.

"I am a lot older that I look" I said truthfully. "Look we both have lives and plans to live, what matters most is enjoying the opportunities that come our way without upsetting those plans."

I was either learning to control the sexual urges caused by the mind merge or I was getting used to it. The sexual urge was so strong, that if I gave in to it I would have attempted to rape every woman on the plane. As it was I knew I had to have Evelyn on this flight to satisfy the urge or else.

Luckily for me she was game. Being Ken, a 6'2" blonde blue-eyed Adonis helped, but I like to think it was my mature nature and conversation that won her over. I placed a blanket on my lap with a mischievous grin. I knew what she had in mind but that pleasure would not relieve the urge entirely. Instead I suggested she go to the bathroom and that I would follow.

Standing outside the airline bathroom door I knocked 3 times, looked around and slipped inside. Evelyn had already removed her jacket. We embraced and franticly I reached under her long skirt and pulled down her panty hose. I bent her over the toilet pulled out my aching cock and forced it in her pussy. No foreplay, no preliminaries, this was about satisfying the urge and the only thing it wanted was fucking and Cumming. I reached a hand under her and played with her tits as I kept fucking away. She had one hand bracing her self over the toilet and the other stifling her moans. I started to cum, the pleasure released, the fireworks in my eyes dazzling me. But it wasn't over, the mind wanting more. I released her and she sat on the toilet. I placed my semi hard cock in her mouth and instantly it was fully erect. I could tell she was surprised by my stamina. She was hesitant in giving head. But what was she going to do, embarrass herself by calling for help. I started to fuck her face steadily; every now and then she would gag taking in the entire length of this cock. Then the pleasure sensations would happen again.

We fucked once more in the bathroom before the plane landed. At the baggage claim she gave me her number and Kenny promised to call her. I knew Kenny, and when I decide to give him back this body I am sure that he will call her again.

I took a taxi to my daughter's house. I was now pretty confident that I could control these sex urges now. First of all she was my daughter, I wouldn't feel sexual toward her at all and secondly, I was reasonably sure that my computations would work in adjusting the device. Once the urges began I would go into town and satisfy them, which would be no problem with this body.