Voluntary Darkness: Part II
Copyright© 2026 by Cabrock
Chapter 2
Erotica Sex Story: Chapter 2 - WARNING: much quasi-slavery and BnD. Lesbian grad students experiment psychologically on each other, leading to a kind of voluntary slavery. Suppression of personality is their goal, and such is achieved, though they never originally intended to involve males. Incest experimentation starts in this, Part II.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Fa/Fa Teenagers Coercion Consensual Hypnosis Reluctant Slavery Lesbian Heterosexual Incest Sister BDSM DomSub MaleDom FemaleDom Anal Sex Cream Pie Exhibitionism Lactation Massage Oral Sex
“You didn’t record anything?” Dr. Klien asked as I squatted before her, once again in Tatania’s living room, forced to endure another perverse status report. “No,” Sherel replied with a chuckle, “Too busy with the boatload of semen she was leaking. Christ, her brother is a freak!”
“Nineteen huh ... suppose we’ll have to do with a reenactment,” Dr. Klien smiled, causing me to look about as best I could without moving my head too much. What did she mean? I soon found out when Tatania’s husband-slave was summoned over, allowed next to kneel behind my squatting form, then mount me, unceremoniously. I suppressed a groan at the intrusion, though I was certainly wet enough from just being dominated so openly at this point. The heavy zipper-like collection of piercings on his ball-sack, stimulated my clit once again.
“Nnn ... nnn ... nnn...” I moaned involuntarily for my professor as my body was rocked with each thrust of my rider, resulting in her gently caressing my face as one would do with a child during a medical exam. Tatania was now squeezing my tits and nipples, announcing that there was still no sign of milk production yet. I wanted it! We all wanted it! So fucking erotic it would be, I was convinced.
“What did she say during coitus with her brother?” Dr. Klien asked calmly. Sherel then had to admit that she didn’t see the first mounting but had seen a little of the one in the shower. “Tell Dr. Klien!” Sherel demanded of me. “Ummm ... ummm ... I ... I moaned but ... ughh ... I was licking Lily...” I stammered out. My talking while being expertly plowed wasn’t all that coherent.
“Hmm,” Dr. Klien replied in a disappointed tone as she sat back on the couch, “Let’s see how much Lenard cums for us now.” With a “Yes, ma’am,” Lenard began pounding me relentlessly, clearly trying to climax now. I moaned loudly for him and those watching. I wanted to! Wanted to be the slave-bitch we all imagined.
Oddly, Lenard was mostly silent as he rode me, forcing his heavily altered ball-sack to peg into my pussy lips with audible impacts. It was a new dimension; a brilliant one implement by Tatania, giving a bitch more stimulation then would have been possible otherwise. Tatania massaged my nipples expertly the whole time, sending me over the top.
“AHHHH ... AHHHH ... AHHHH...”
“Fucking slave-bitch,” Sherel laughed as I was cream-pied. This was humiliating and erotic at the same time. I so wanted our psych experiment to be successful. It would be one for the record books!
Less than half as much semen, Sherel informed us, once Lenard unplugged my sensitive pussy and I did my best to expel his seed on command. A thrill ran through me at the thought my brother was greatly superior in this respect. I wanted Whalin now, I realized suddenly; wanted to show Dr. Klien his ability to cause a massive gush of cum to flow from my pussy. Penny’s eager tongue licks came to mind now, causing me to look over my shoulder, expectantly at Lenard.
“Please!” I huffed as I arched my back and extended my butt upwards, just enough to press my pussy into his face.
“Oh, you have trained her well, congratulations!” Dr. Klien announced loudly, getting in return a, “Thank you professor,” from a proud Sherel.
“Whalin!” came an unexpected voice from behind me. “Hey...” I said with a welcoming grin, surprised now that Lily was leaning over my shoulder, just before the start of my next orientation. We were in one of those big classrooms with tiered seating, waiting for someone from the chemistry department to come and talk us into accepting chemistry as a major. Wasn’t thrilled to be here but had to pick at least four college departments to investigate when I’d signed up for this trip. “How’d you find me?” I asked Lily.
“Took a photo of your agenda ... why the hell did you pick chemistry?” she replied with a disapproving look on her face.
“Umm ... so you could come and learn if chemistry is in your future,” I replied sarcastically, “ ... had to pick something...”
“I’m here for that!” she replied softly as she motioned with her head toward some girls on a lower tier. They looked hot to me too, causing me to nod in agreement. “Got to grab them quick—before some diesel-dyke gets ahead of you,” she explained with a laugh, then cursed out, “Fucking Sherel!” as both our eyes focused on a distant Sherel, who’d appeared now to be working the room. “Oh, she’s using Penny like bait on a fishhook!” Lily practically spat out.
“It’s working,” I whispered out of the side of my mouth as girls all around the room were noticeably checking out the most beautiful girl on campus, or so I suspected. Penny’s nearly constantly pouting face put me off sometimes, but I could be forgiving after just a glance at her legs, face, hair and butt. Smiling now, Penny was getting a lot of attention from girls, I could see.
“Where’s Mandy?” I dared to ask as I looked back at the entrance to see if she might be lurking there. “Left in her closet...” Lily replied nonchalantly as she scrolled on her cellphone. I shook my head slightly at the thought, having been shown this closet once by Andie. Fucking psych lesbians, I told myself with pursed lips; still couldn’t figure out how real they were being.
“Oh yeah, Sherel took her to the professor,” Lily announced as she held her phone in front of my face, then quickly turned down the volume as some stranger’s voice played out, along with the recorded image of a very sexy girl, squatting with her back turned. It was a close up of her behind, and didn’t show her head, but I soon figured out who this was. “You’re not the only one making cream-pies,” Lily snickered.
“What?” I muttered as I watched and listened to my sister being talked about like the apparent test subject she was. My name came up as Sherel talked about semen. Big set of balls came next into the shot, pitted with piercings, plugs actually, which looked damn painful to me. They started bouncing off my sister’s pussy in spectacular fashion, causing me to admit to myself that this mutilation might be worth imposing on my own balls. The sound of slapping was louder than I could produce, I was sure, and my sister’s moans may have been louder too. Man was I getting hard!
“Let me see more,” I begged after Lily pulled her phone away. “Not here...” she scolded, “ ... and why do you cum so much?”
“Ah ... maybe ... um big balls,” I suggested with a shrug, though I had no idea how my balls rated. “Nooo...” she replied with an upturned nose, “ ... not as big as Lenard’s ... maybe all those piercings plugged something...”
“Yeah maybe,” I smiled, proudly now that I could impress so many girls with my load. “Oh, by the way...” Lily said in a more serious tone, “ ... you’re not being dominate enough—this from the professor!”
“She say that?” I asked with concern.
“Use it or lose it!” Lily replied as she headed off toward Sherel and Penny.
“Yeahhhh,” I muttered as I watched her sexy butt walk off. I could get mean, I assured myself; things had gotten to that point with my fucking sister.
I’d slept with my sister in her bed last night, but nothing had happened, other than we had spooned a little. She was quiet for the most part, submissive I guess, but we were both fucked out, and I had an early orientation meeting coming up. With just four hours sleep, I’d wandered through this day, briefing after briefing, until Lily had showed up to brighten things. The video of Lenard plowing Mandy, and the comments being made as it happened, were on my mind the whole rest of the day. Now I could finally act on them!
Expecting maybe an empty closet, I unlatched the door, then found an excited looking sister gazing up at me as she moved into the squatting position. I just about said something but then stopped myself as I took a leash off its hook and carefully attached it to her collar. This Harry Potter cupboard under the stairs was so unbelievable that I couldn’t resist sticking my head in to get a second look at it. Comfortable, I decided, that is if you were as short as my sister was. I recalled now, once being shorter than her, but not now!