He, showing his gentlemanliness, suggested that maybe they should swim in their underwear since there wasn’t really much difference between undies a...d bathing suits. Deep down he hoped she would opt for skinny dipping. She said that she was not about to get her new bra wet and that, since they WERE adults and WEREN’T virgins, they had seen members of the opposite sex naked before and, what the hell….. He agreed. They stripped down and in what little moonlight there was, he eyed her body. He said it wuld get easier with time and practice. We got up from under the tree and put our shorts on and walked to the house. Well I kinda hobbled a little. He said he had to get me cleaned up before I went home. We got in the house and into the bathroom and had me undress and he took a wash cloth and cleaned me up and then he had me clean his cock with a wash cloth. I couldn't help but stroke it and pull on it as I cleaned it off. He told me I was so good at doing that and that part I enjoy. After all, I paid for gas and shuttled them around, and it was his girlfriend and his girlfriend’s girlfriend he was trying to impress.I bought my own snacks, and I noticed Beth was opening her purse to pay for hers. Emily and Greg already had their snacks and were far enough ahead that I thought it would be okay if I offered to buy Beth’s. After all, I felt I owed her a kindness after the other night.I put a ten on the counter before she got her wallet out. “I got this, Beth.”“You don’t have. "How about this?" I drove it deep, making him squeal. "You love it, don't you whore? You just love getting a fat cock in your ass. Want it hard?" Yeah, give it to me hard. Fuck me hard." I propped myself up and pulled it in and out all the way. But it felt awkward, so I pulled out and looked at his gaping hole. "Lay on the bed," I told him. He got up, looking shaky, and leaned over the end of the bed. "No, asshole, lay on the bed, on your back."He climbed on and turned over. I grabbed his.