I confess I was turned on by my wife giving her brother a lap dance, and I am almost sure she was too.
My wife started dancing alone, that turned into a dance for me, and then for me and her brother. The more wine we drank the sexier the dance, until it was an out and out lap dance. He and I moved our chairs so that our knees were practically touching, and she danced between us.
At one point she grabbed my head and pulled my face to her tits. As I move back I noticed his hands were on the outside of her legs, way up to her ass. I pulled her head to my cock, and as she was bending over his hands were all over her ass and under her t-shirt back and front. At this point I was mostly watching and touching a little; but he was grabbing everything: Tits, ass, crotch.
When he went to bed I could not wait until I got her into the bedroom, and as I fucked her (a lot because I have trouble coming when I have too much to drink) I could hear her in my ear saying “yes Dave” over and over. Both of us are named Dave.
