Something else

I turned, now facing Jack, and pushed him away a little bit. He stopped pulling, as I slid away from him.

"Lay down on the bed, I'm gonna change in the bathroom. Oh, and lose the pants," I instructed, surreptitiously grabbing something from my room. He gave me a confused look, pulling his pants down as I stepped into the bathroom. Fortunately, the dress was fine and not even stretched. It only took a minute for me to change, emerging in the pink lingerie to Jack on my bed with his cock standing at attention. His cock wasn't longer than average, but was fairly thick. I felt wonderfully dirty, wearing lingerie I had gotten for my boyfriend, about to fuck a guy in my own bed where I had only ever made love to my boyfriend. Worse yet, I didn't have any condoms; he usually brought them, so I never worried about having any on hand.

I got into the bed, straddling Jack's legs with his cock near my face as I leaned forwards. I started by licking the precum from the tip, giving his head little kisses and sucking on it. I started licking, all the way from the base to the tip, covering it with my saliva. After a little while doing that alternated with sucking on as much of it as I could fit in my mouth, his cock was plenty lubricated. Scootching up a little bit, I went back down and carefully slid his cock in between my tits. He let out a low grunt, staring down as the tip of his cock came out through my cleavage. I squeezed my tits together; they were big, but it was still hard to give a guy a titfuck. I had never tried this with my boyfriend, so it was all an experiment, but Jack seemed to be enjoying it quite a bit. He unconsciously pumped his hips, trying to fuck my chest as he watched me slowly slide them up and down around his cock. I made sure to kiss his tip when it popped out, and was rewarded with a steady flow of precum.

"Fuck, stop, I'll cum too soon," he grunted, trying to slide his cock out. I was pleased with the results to say the least, but it was only a question of how far I wanted to take this. I could make him cum right now and let it be a done deal, or I could stop and get time for other things.