Naturally I said yes (didn't want to look as I'd never done it before did I?) he went on describing some of the pictures and I was becoming aroused an... mentioned it when he said he was also getting hard, and pushed a hand down his pants for a quick rub. I asked him what he was doing, so he showed me, lobbing out his hairless erect uncircumcised cock and started peeling back the foreskin to show me his purple dome and started having a quick pull, his foreskin wrapping and unwrapping his purple. Once she tied Ursula on the bed with each hand and foot strapped so that her sweet body was spread-eagled on the coverlet. Her soft raven hair was lying on the pillow and her little triangle of pussy hair was displaying her red labia with droplets of cunt juice glistening in the overhead light. Cynthia teased her with a feather all over her body, but especially on the areas she knew Ursula found sensitive and which aroused her the most. I knew them well myself. The feather tickled her hard. We end up in your bedroom where we sit on the bed and talk about them. You lean back as you always do against the headboard andI sit at the foot of the bed. While talking I notice that you are sitting with your legs spread again. I can see the faint outside of your womanhood though your shorts. I also notice that your bra-lessnipples are semi swollen though the thin shirt you are wearing. I hope this is because you have told me that you want me as much as I have wanted you. Suddenly you stand. The fantasy starts here. Lol. I said well I could show you but she said no no you cant cheat on my sister. I said its not cheating Gabby. I am teaching you something that you need to know. She said ok then. I couldnt believe it. I have waited for this moment for so long. She stares as I undo my pants and pull out my rock hard cock. I grab the back of her head and pull her down on her knees in front of me. I say "Open your mouth you little fuck." She opens her mouth and I slam my cock all the.