They told him the whole truth and let the Dad decide. Well, Frank was no dummy. He had seen a girl coming home and he knew that if this was what hi... son/daughter AND his wife AND the school board wanted, then he just had to agree to it because he cared about his family and wanted everyone to be happy. Oh sure, he stammered and guffawed a bit. However, he took comfort in the fact that Tony was a very good student and would probably get a scholarship offer. He considered putting him in. One said he thought it was about time that their sons became men and maybe being that their birthdays were coming up they could give them a "Men's only party" and invite a entertainer who would see that they were taken care of. "Damn them," I was thinking. "My son is not going to get laid by some dirty filthy whore if I can help it." I continued to listen as they laid out their plot and plan to get a woman for our sons to enjoy. There would be beer to drink, sex movies to watch, and a woman to. Never would she have done that before. I figured what the hell let's go with it."Well you seemed OK with sucking Jerry's cock, I thought maybe. If Jerry and Mary don't mind of course." I said trying to be cute."I don't think I would have a problem as long as I could play the part of the guy." Jerry teased. We all giggled."Yeah and like fucking my sister has never entered your mind." "Well it has mine." Mary called into the conversation. "I mean what the hell Di. We came this far, we can always. She leaned back so that I could see it and then showed me where to play with her so that she could get off. She said that this would work for most women. After playing with her pussy for a few minutes, she said she wanted to feel me inside her.She climbed on top of me and lowered herself down, I watched as her cunt swallowed my cock. When she had me all the way inside her, Dawn looked at me and told me that I felt amazing inside her. I told her she felt amazing also. She told me to play with.