Other than name changes, this is a true story from my life.
I always knew I had an interest in sharing my partner. It started small, encouraging my friends to make sexual jokes around my girlfriend, slapping her ass around them, stuff like that. Jazmine, (My girlfriend) and I often joked about me passing her around. What she'd do if one of my friends made a move on her, or if I encouraged it? It was always light hearted fun that usually ended in us fucking passionately once we were sexually charged enough.
We were now 19, her about 4 months older than I. She always made it easy to roleplay my sexual fantasies as she got a lot of attention from the boys. Jaz was just barely 5'1, dirty blonde with plump, 36DD cup breasts. She had small, pink nipples that loved to poke out when she didn't wear a bra, which she hardly ever did as she knew it drove me wild to see her show them off. She weighed maybe 115lbs, so with tits like hers on such a small frame, she commanded a lot of looks.
I still lived with my parents, who were used to Jaz coming over as we had been together for so long now. One day when she was over, things would finally escalate past roleplaying. My parents weren't home, so Jaz was in my bed wearing only a bra (surprisingly) and her thong. Being 19, we had already fucked once as soon as she got there. We were now just hanging out, talking about what my plans for the rest of the day were. I liked to make music with my buddy Chris, who was coming over to record some vocals soon, as soon as I went to pick him up. Hearing that put some dirty thoughts in her mind.
"Well..." Jaz said as she scooted closer to me, "I am basically naked here. You're really going to bring him over when I'm dressed like this?"
I smirked at her, "don't tempt me"
She laughed and started to rub the growing bulge in my pants, "I know how you talk about me with your friends, I'm sure he wouldn't mind a peak at what you're always bragging about."
I moved her hand underneath my shorts, "I guess we'll see what he walks into. My parents will be home in a few hours, so I should probably go get him."
I removed her hand from my dick, which she had now been stroking for the end of our conversation. I left her on my bed while I went to get Chris. I was about 6 foot flat, white, average body and a 6-7 inch dick, on a good day. Chris was about 6'1, black, toned body and his dick was yet to be seen.
After picking him up, we initially talked about the music we were going to work on. Shortly into the conversation, it turned to Jazmine. Chris was used to me teasing her and didn't mind getting involved in the jokes. One time he even slapped her ass when she walked by. She gave him a dirty look, but I saw her smile when she turned away. That was the first time I fantasized about what else he could do to her.
I told him we were getting it on before I left to pick him up, so I wasn't sure what mood, or clothing, she'd be in when we got back.
He laughed, "so I might finally get to see what you're always talking about!"
I chuckled back, "I guess we'll see what she's in the mood for."
As we pulled into the driveway, my heart, and dick, started pounding. We had always joked about this kind of thing, but was I really going to let another man be involved? At the time, we had lost our virginities to each other and hadn't been with anyone else. The more I thought about it, the less I was thinking with my head and the more I thought with the other one. I was going to do this if she was ready.
We walked inside and up to my bedroom, idly talking about music as our minds were entirely elsewhere. I opened my door to see her exactly how I left her. Laying in her bra and panties, with my blanket just covering her mid section. She knew what she was doing. Chris's jaw hit the floor.
"Hey Jaz, been a while!"
She laughed, "yeah, sorry, we were a little busy earlier and I haven't gotten up yet. Here to make some music?"