Well let me start off with me and my wife are very open sexuly don't most things I could hope for just one event has me stumped she did cheat on me with an ex of hers. Now part was my fualt I was very depressed and down to the point I didn't want sex for mid length spans. Now I have a free pass to sleep with another women as long as she dose not know and I dont fall in love lol.

Now my delema is.... Her sister she's 17 tall, long legslegs, beautiful hair, and an ass to die for nice small pirky breasts.

Now I've goten to see her in underwere. She seems comfortable around me also my wife has talked about our a sex life to her. I think including my thoughts of the sister.
And I've talke sex with her just not between her and me.
Today I tryed teasing her I wrestled with her and horsed around she playfully fights me off as I mess with her all the time. I rubed close to her croch and her thighs. She sat away from me but was not totally shy. Can any one help me?? I think I'm going to be forward with her. If she said no I would stop trying but dam she's so sexy I just want to get my mouth on her pussy and ass.