Becoming steadily more excited but, by holding back, making the excitement mount even higher. Then almost as though by mutual consent they halted thei... exploring hands and settled in a comfortable stillness, his hand still covering her warm globe, hers on his chest. Their kiss gradually subsided and their lips pulled slightly apart. "That does feel nice," Steve murmured."Umm," was all the response Jennifer gave.The bright moonlight suddenly dimmed and both the young people instinctively looked. Steve's cock was still rock hard. I knew from my last experience that this guy could fuck for quite a while and I was not about to quite either. As I was cleaning up the mess, I looked over at Rico and asked him, "so are you good for another shot too or what?" He looked at me and said "Hell yeah." I told him that I wanted to see if I could take his cock in my ass, while I was positioning myself on all fours and directing my ass towards him. Steve just grabbed the towel and stood back. Already. " he smiled."Participate?" asked Pam."Instead of a dildo, we will use my cock," he smiled. "Its only fair. Trust me."If he thinks I am going to let him screw me ... fair. Well he has been looking at us all night; you can see his erection even now. Trust ... He is the referee. We have to trust him. We are the ones who said we wanted to spice it up more.I watched my sisters as their faces went from outrage to acceptance. The same thoughts must have gone through their minds as had went through my. Jonworked for a large medical corporation and the research he was doing wasvery top-secret. No one was allowed into his office except his boss andsome lab helpers. As a result, Jon was often alone for long stretches oftime. To make matters worse, he was still a virgin as his job left himlittle time to meet women.Jon was typing up some data when he heard a sound at the door. Leaning onthe doorway was a beautiful woman. She looked to be about 19 and stood atabout 5'9 and 110 pounds. The girl had.