Lacy was the perfect woman, one problem she is my sister. Lacy has been cock teasing me for years; walking around the house in her nightie, bending over in front of me wearing a low-cut blouse on with no bra, brushing against me. Lacy and I were always close and always talked. She is a popular girl in High School and I am average except for weight lifting. She is 17 years old and I am 15.

Lacy is a tall, slender brunette with olive skin, green eyes and a killer white smile. I had always thought her cock teasing was by accident, a nice accident but yet not purposeful. Then I started to read online pornography, I was stunned, what they talked about was what Lacy was doing and did. I thought and planned for months but could not form a plan. Then Lacy broke up with her boyfriend it seemed like it did not bother her. As I passed in the hall I'd touch her arm innocently or brush against her.

Lacy was sitting on the couch one Friday night; leaning with her back into me and her feet up on the sofa. I slipped an arm around her waist innocently and held it there. My arm was just under her breasts and I could feel her breathing. Somehow this innocent act was a small intimacy. Our parents went out a lot and we'd watch TV together. The next time we were alone the same thing happened, I put an arm around Lacy and smiled.

"Jeff I love when you have your arm around me; it makes me feel so safe with you here."

"Thank you Lacy." I said feeling strong and cool.

We were talking about Lacy finding a new boyfriend and watching a movie. I accidently on purpose, put my hand just under her breast; my thumb was just touching her bosom. I did this as a test to see if she'd allow it. Lacy never said a word and was pretending not to feel it. I was fearful and never moved my thumb. After the movie, Lacy went to her bedroom with a funny smile on her face and gave me a kiss on the cheek. I blushed.

The next time she sat against me with her back I encircled her waist as usual. As we sat there, I felt the blood pounding in my head as thoughts of feeling up Lacy danced through my head. Her smell filled my nose and her soft skin excited me. It was getting late and our parents would be home soon. I made my move and slid my hand up and grasped her breast lightly. I feared to move my hand at all.

Lacy never moved or said a word. Lacy had on a sleep shirt, no bra; panties. She looked so sexy it made my cock throb. I could feel the weight of her tit and the nipple hardened as I held her bosom. We were there five minutes when the headlights of our parent's car appeared on the window.

Lacy rose, removing my hand "time for bed, good night" she said with a sweet blush and ran to her room.

I went to bed and laid there in heaven. Lacy had let me feel her booby. I dreamed all night of silken skin and gentle sighs. In the morning, Lacy was there in the home gym when I entered. Lacy had on a muscle T-shirt and sweat pants.

I am not sure why I did it but I walked up to my sister, and was stood behind her; reached around and cupped both her breasts as I said "good morning."

"Jeff what are you doing" she said with a giggle.

"Lacy you're the prettiest girl I ever saw!" I keep my hand over her breasts.

"You think I am pretty?"

"Lacy your beautiful" said as I gently fondled her, squeezing her breasts softly.

I slowly and gently felt my sister up as we made small talk, avoiding talking about my sexual touching her.

"You doing your work out today Jeff? All my friends think you're so handsome." She blushed.

I heard my parents in the next room and released my sister.

Later our parents left and we were by the pool. Lacy asked me to put suntan lotion on her back. She wore a bikini top and tap pants made of nylon, lay on a beach lounger on her stomach. I applied the lotion slowly all over her back, then rubbed it in. Lacy has supple, toned skin on her dancer's body. Her back is more beautiful than some girl's tits. Lacy's back, her small waist, flares into her hips and butt and pretty long legs. Her ribs show, as she is slim and her shoulders are small and fine with slim arms. Lacy had her beautiful long hair in a pony tail. I applied lotion to her legs running my hands over her smooth legs and up to her butt. Then all over her back from her waist to her shoulders as Lacy made little catlike sounds of pleasure.

Lacy turned over and I started on her legs, working up to her tight smooth thighs. Lacy spread her thighs to give me access. Then her flat tummy and ribs, above her breasts and arms. I was sitting there looking down at her and was stunned when I rubbed her belly and then down to her thighs and back up the other thigh then to her belly. Lacy was sighing with joy.

I slid my hand into the top of her swimsuit bottom and touched her belly, then reached down to the side of her pussy, avoiding her cunt but just barely. My hand dipped down each side over and over, her belly and upper thigh open to me. I stopped, looking down at my sister and she was flushed red. Lacy got up and went into the house. I knew she'd have let me feel her pussy if I had tried.

Two days later we were alone at night and lacy was prancing around in a sleep shirt, panties and her boobs were jiggling as she did not wear a bra. I did not play around, I walked up too Lacy and cupped her breasts, gently squeezing her bosoms.

"I want to take you on a date sis."

"You want to date me? We can't do that."

"Why not sis? I want to do more of this" said as I squeezed her bosoms gently.

Lacy blushed. "I am your sister and we can't. If we date, it will change everything between us." Lacy lowered her head and looked sad. My hands on her ripe breasts.

I lifted her chin with my left hand and keep her breast in my right palm and leaned forward and kissed her lightly on the lips. "Lacy we have changed, we fool around now" I pressed forward and put my left arm around her waist.

"I; I; if we date, it will be different brother. I am afraid."

I held my sister and just hugged her and her arms went around my neck. We stood there as the seconds ticked away.

"If we go on a date then you'll fuck me, I won't be just your sister then, things will change. I will be your sister that you fuck, your girl friend that you use for sex. If you get me pregnant and leave me I'd die." She whispered.

Lacy was crying as I held her; her arms tight around my neck. "I'd never hurt you sis."

Lacy held onto me tight as she cried. "I want you as my boyfriend Jeff, I need you Jeff, you're so strong. I will be your girlfriend; I know what I have to do to make a boy happy."

I was stunned. My beautiful older sister had just said she wanted to be my girlfriend and we would be fucking. She would do what I wanted.

"Our first date will be in my bed" she whispered softly.

Lacy took me by the hand and led me to her room. Opened the door and lights and turned to face me. Lacy unbuttoned her sleep shirt and her cleavage appeared and her smooth belly. Lacy grasped the lapels of her open shirt and spread it open; I was staring at her naked breasts. Round full breasts with brown nipples and areola, nipples hard as diamonds and sticking out at attention. Lacy dropped her shirt and I stood there frozen, looking at her naked torso. All her upper body was perfect, slim and symmetrical. Lacy's breasts were perfect cones of flesh capped with brown nipples and her six pack stomach and slender body made her so sexy.

"Do you like my breasts" Lacy asked shyly.

"My god your so beautiful Lacy and your breasts are perfect, just perfect!"

Lacy broke out with her wonderful smile, she was even prettier when she smiled. Lacy's smile with her bare breasted was lethal.

"I know we are going to do it; please don't think I am a slut, what you think about me is so important to me" she begged.

I reached out pulled Lacy to me. "Baby I love you. I know loving you is so wrong but I have loved you so long, I need you."

"Oh Jeff you love me" she held my face, smiled and melted my heart. My hands were on Lacy's panty-covered bottom, pulling her into me.

Lacy kissed me softly on the lips as she held my face. I surged into her tighter, pulling her butt with my hands, feeling the wonderful spongy texture of her firm ass and pressing her into me. The pressure of her belly and pussy against my erection was heaven.

Kiss after slow kiss lead to another kiss. My mouth was glued to hers. Her tongue lightly touched my mouth as we embraced. That tongue set off a bomb and my head felt like it would explode as my tongue meet hers. Two tongues danced as one. I slid my hands into her panty and fondled her buttocks as we kiss, pulling her into me. Lacy's panties slid down to her groin and her butt was bare. In our rush to kiss, this just perfect, knowing her naked cunt was pressed into me inflamed me more.