I confess i have a thing for my gf's younger sister, she is 17 now, ive been looking at her since she's 15, how her chubby tits grew, and how her figure grew sexy, i have a kid with my gf, and often when shes not around, her young sister woud play or do things with the baby, and her huge tits woud drop and giggle i always watch, thing is ive been lately having alot of wet dreams about her, i once saw some pics of her on the family pc, but she never showed her tits,only her butt, she always wears a bra around the house, but i once or twice ,have seen her bra less, and she once pressed her tits on me, i got a hard on then and my gf was around, i was so freaked , anyways, i just have this huge urge to fuck her ,or to txt her sister, or to start something with her, my gf is now pregnant, and we dont have sex casually.. so you know how it gets.,i guess this post sucks, but i had to get it out my chest.