After I graduated college, I moved to Oakland and started dating a girl in the same neighborhood as me. Rina was petite, smart, athletic, and was the kind of person who was always learning some new skill or exploring a new hobby. I had a studio apartment so we spent a lot of time there - reading books, listening to movies, and hooking up. She had a very high sex drive and there were plenty of times when we'd fuck, both cum, and then she'd immediately start masturbating again as she watched my cock soften. She'd go out for a jog or do yoga and when she was finished we'd hook up again. I loved the weird way her brain worked and how we could be arguing about some math theorem one moment and I'd be choking her out the next.

She lived with two other roommates - both women in their early 20's - and their apartment's common area had a big TV with nice speakers opposite a large comfortable couch. We'd do movie nights there every week or two and would sometimes be joined by one of her housemates.

It was a weekend night in winter and Rina and I were cuddling together on one side of the couch covered with a blanket and her housemate Xia, a cute biophysics PhD who'd dropped out to become a data scientist, was on the other side eating popcorn. At some point Rina's hand had crept onto my shorts and she was gently kneading my inner thigh. It didn't take long for me to get hard and she started stroking up and down my cock. I snuck my hand under the blankets and untucked my cock. Rina started gently pumping. I'm not sure how obvious we were at first, but at some point either the lighting of the movie changed (brighter scene) or her stroking had become more vigorous, and it was clear that she was jerking me off.

Xia eventually looked over at us and asked if we wanted any popcorn. Xia has one of these faces that always looks either sad or angry, so I find it particularly alluring to see her smile, and her lips were curled into a slight smile as she turned towards me. Rina stopped stroking the second Xia spoke up. After a few minutes, Rina continued working on my cock, more slowly and perhaps more discreetly this time. A moment later Xia complained about being cold, and moved against me on the couch. It wasn't too uncommon for us to all share a blanket - the apartment was drafty and the weather outside was unpleasant. Again, Rina stopped stroking me the second Xia had spoken.

Xia cuddled up to me and pressed her cheek against my shoulder. She rested her leg against my thigh. Rina's hand was on my stomach, her finger kneading my skin gently, hesitantly. Xia eventually whispered "you can keep going" and I swallowed nervously. Rina's hand curled around my cock and resumed stroking. She didn't say anything. I felt the precum dribbling down my shaft.

I'd long ago stopped paying attention to the movie, but another bright scene illuminated the room. Xia pressed more tightly into me and draped her hand across my lap. I felt her long fingernails trace a line from my hip and come to rest on my abdomen. We lay like that for a while, my girlfriend stroking my cock gently, her friend cuddled up on the other side. "Can I watch?"

Rina pulled the blanket off and continued stroking. I could feel Xia's breath against my face. "Wow" was all she said. I could tell she was nervous too, but her hand slowly crept downwards until she was cupping my balls.

My girlfriend smiled and leaned forward to suck my cock. When she came up for air, Xia went down on me without even asking. Her technique was amazing, and after only a few seconds I felt myself getting close. "I'm gonna cum" I said, and Xia withdrew her head and stroked several thick ropes of cum out of me.

Xia ran to the kitchen to grab paper towels and helped me clean up. We re-wound the movie and kept watching it, this time with Xia resting her head on my lap and my girlfriend pressed against my arm.

Things would escalate in the weeks that followed. My girlfriend and I never openly discussed the relationships that were developing with her housemates, but every time we had a movie night Xia would join us and at some point my cock would come out. I started fucking Xia on the couch while my girlfriend would watch and masturbate. Sometimes I'd fuck Rina too but I think she preferred watching. When I ejaculated inside Xia, Rina would congratulate me, and later that night she'd make me fuck her the same way I'd fucked Rina.

Jess, the other housemate, would occasionally come out of her room to grab something from the kitchen while we were having a session. She'd never say anything but sometimes she'd pause for a second. I remember making out with Xia one time and locking eyes with Jess on the other side of the room, a bottle of soy sauce in one hand and a saltshaker in the other. She blushed and turned away.

At some point Jess started joining in too. One night she came out into the living area as Xia was riding my cock and began openly watching. They all started giggling after Xia made a particularly loud moan. Jess walked around to the front side of the couch and sat on the floor to watch the action up close. She slapped Xia's ass and the girls all laughed again, and then she started squeezing her ass and playing with my balls as Xia bounced up and down on me.

Jess wasn't interested in fucking me, or at least she was too nervous to make a move, but after I finished inside Xia I remember her asking if she could see the aftermath - Xia parted her legs, my cum dripping out of her. I realized that Jess was drunk, her natural shyness negated by alcohol. The cum fascinated her, and she stared for much longer than would have been acceptable, staring silently until Xia closed her legs and broke the spell.

Another time when my girlfriend was sucking me off and I was getting close, Jess came into the room and sat next to Xia on the couch. She grabbed my cock out of my gf's mouth and stroked me the last few times until I came. I could smell the alcohol on her breath as she gave me a peck on the cheek and left.

I'd eventually start fucking Xia one on one. I'd come over to visit my girlfriend, have a few drinks, and join Xia in her bedroom to hook up. My girlfriend would always want me to herself afterwards, either fucking me or aggressively cuddling or making out. I remember one time when I was fucking Xia and my girlfriend started knocking on the door anxiously. We finished up fast so I could unlock the door and join my gf in her bedroom where I spent the rest of the evening eating her pussy and fucking her.

Xia and I would text non-stop, talking about life, sharing nudes, and flirting. We never spent time together outside the apartment, but when I came over I could tell she was trying to get as much time with me as possible. Sometimes when I'd finish fucking, Xia wouldn't let me leave until we'd cuddled for a half hour. She'd tell me stories about her childhood in a conservative suburb, her overbearing parents, and the office politics she hated. Often I'd get hard again during our pillow talk and she'd have to suck me off before I could return to my gf's room. One or two times I slept over in Xia's room, but my gf would always pounce on me the next morning and drag me back to her place.

Jess always kept more of a distance, but she eventually started joining us for movies too. We never had any kind of intercourse, but she liked to make jokes and would always be the one to grab the paper towels. She'd give me shoulder massages while my girlfriend was on her knees giving me head. I never saw her naked or touch herself. She was petite and attractive, but I'd never seen her body. One evening she stroked my cock after I'd ejaculated inside Xia. "You guys taste good," she said as she licked her index finger. I could tell this made Xia jealous.

There was one time after a sex session when Rina and Xia had gone to take showers and I was left alone in the living room. Jess came out with a beer in her hand and sat down on the couch next to me. Her cheeks were flushed red. I had a shirt on but no pants, and a corner of a blanket was covering my crotch. She put a hand on my thigh and I got instantly hard. She leaned in and we started making out, at first cautiously, then passionately, hungrily. I pressed my hand into the back of her head and she reached under the blankets to grab the base of my cock. I slid my hand under her shirt and bra and cupped one of her breasts. When the door to one of the bathrooms creaked open Jess abruptly stood up and left the room while I hid my erection. Xia was surprised to see my hard again and jerked me off.

A year later I'd break up with my girlfriend, but I kept fucking Xia for while, bringing her to my place instead of visiting their apartment. Towards the end, she admitted that she'd gotten the ok from my gf before we'd ever done anything sexual together. She also confessed that they'd had a couple threesomes with guys Xia had brought over while I was still dating my ex - that hurt, but but instead of reopening old wounds it mostly turned me on. Xia eventually started dating a guy and things became serious. They were thinking of moving in together, getting a dog. I brought her over one time and when I slid into her it felt unusually warm, wet. She told me she'd just finished with her boyfriend. I left a load of my own. It was messy.

Eventually Xia and her partner became monogamous so I stopped seeing her as well, but I'll always remember those nights with the three housemates.