When Steve went to use the bathroom, Val got up to go to the back of the apartment as well. I couldn't hear anything but when I was talking with my friends, I imagined she had his cock in her mouth, or perhaps was already getting fucked by him. I grew hard just at the idea, even though I worried we might get caught. They came back after a bit and Val gave me a sweet smile. When she sat back down she rested her feet on my lap and I rubbed them while we all chatted.
When my friends finally left, Steve immediately had Val strip down for him. He kissed Val passionately then told me that since I was so good about having him come over unexpectedly, Val could suck my cock while he fucked her. He had me go fetch one of his condoms, and when I got back Val was already naked, bent over the arm of an arm chair, offering herself to Steve.
Steve took the condom from me put it on and quickly pushed into her. I watched, and started to stroke myself, then realized I had been promised a bj. I sat in the chair, and Val expertly took me into her mouth. I had had Val's lips around me many times but never while another man was fucking her. I felt like I was harder than I ever had been and worried I would cum too quickly. She stopped for a little and kissed me as she moaned and I found this to be incredibly very hot. The chair was shaking every time Steve pushed into her. When she started to suck my cock again I shot into her mouth soon after. It felt amazing. I then sat there in the chair with my cock out while Steve continued to ram into my girlfriend. I could hear Val's moans right in my ear, feel her breath on me.
When Steve was finished he told us both he was very pleased. He gave me $200 and told me to buy Val some schoolgirl outfits at American Apparel for her to wear to dinner tomorrow. He reminded Val she was not to wear panties and she made out with him one last time before he left.