So incest but not. My gf and I have been dating for awhile. Her younger sisters bedroom is right next to my gfs. Never thought about it but a few time I would hear something while my girl friend (redhead DD and think absolutely rocking body) would be sucking my cock or I’d be fucking her would hear something move by the door. Thinking it was the dogs. One day as my girl is deep throating my cock I see her sister spying on us. She’s younger and just turned 18 not much experience (at least I think so) she was playing with her self and I let her.

A couple of times my gf and I would be fucking or whatever and it became one and more of a thing. One day I was over the house. My gf was working and I was there and her sister (we’ll call her Kayla) was on the couch with nothing but a a T-shirt one and looking out the window. Me being me I was like “ you chill you need to go upstairs cuz Ppl are coming over” she like At me with her hand in her pussy and said make me! I walked away like wtf. Not trying to be a rat I let it got. Horny teen right. Later that night “big party” my girl friend and I are on a hammock swing next to the fire pit. Party is settling down and her sister comes out and sits with us. Not thinging anything of it we’re chilling when my gf grabs my Cock. Looks my in the eyes and says “baby I want to reach Kayle something” in shock I’m like wtf but I’m horny and go along. All of a sudden she pulls My cock out looks at Kayla and says “ I know you’ve been watching, come suck his cock with me” kayle being shy didn’t know what to do and say” idk how” my gf says “come here and do what I do” all of a sudden my gf and here sister are sucking and stroking Cock. Deep throating and gagging(very good girls) Kayla looks us in the eyes and says “can you make me cum like my sister” I said…