It was so erotic to be massaging another man's ass. I was getting turned on and found it really quite easy to slide my finger inside his ass.I asked f...rst and he nodded yes.I had never done that to a man. It was so sexy to be fingering his lubed ass.He moaned with pleasure.I was really want thought to see and feel his cock.Eventually he rolled over revealing his half hard penis. I oiled him up all over working down to where I really wanted to be: his cock and balls.I got him hard quickly,. Mark crawled between my widespread legs and over me, the end of his erection slipping down between my legs, testing the entrance to my heated pussy. I was drooling in anticipation of the cock about to skewer me.I brought my knees up to his sides which gave him more room then wrapped them around his waist to hold him where I wanted him. I moaned loud and long with rapture when he plunged his solid, throbbing manhood into me until his balls slapped my ass. I continued moaning with pleasure as my. When she woke up that morning mom ate her pussy for over thirty minutes.On Saturday mom made sure that all of the girls took their birth control pills. Then she taught us all how to eat pussy, rub clits, and to give girls a great orgasm. She taught the girls how to suck my cock too. I managed to cum in three of the girls plus mom that day. I really was getting better at it too. Every time that I got hard mom would have me fuck everybody doggy style and I got to cum in a few of them.Sunday was. While I wasn't wholly opposed to a romp with my handsome son, I didn't want to jeopardize our relationship, just to prove a point. Suddenly, a thought occurred to me. It might be a way out of this quandary, or at the very least I would drag my friend down with me.“It might be worth a try… But you forget one thing”“And what's that?”“The challenge is not to commit incest, right?” I asked.“I guess”“And while I believe it's a likely consequence, you say that it is in no way inevitable.”“Surely it.