Short Family story part #2 continuation...

Okay... As I sprayed my fully loaded spunk juice all over my sister's fence, I waited awhile for them to finish or a breather break of there sex wife swapping extravaganza. I finally got my opportunity & rang the doorbell and was let in by my sister in her bikini,as I explained what happened to me she said she would help me but had to get back quickly due to guests visiting her. As she was drying her hair with a towel I happened to glance at her bikini and noticed her pussy was very puffy ( Camel toe) but more of a (Moose Knuckle) then turned around bending over with her ass facing me and instantly my cock started to rise and couldn't stop it as I'm looking at her fine figured ass and Moose Knuckle staring at me, I said I needed to use the restroom. As I was walking away she said "Don't jerk off in there, I just cleaned the house" chuckling afterwards I didn't know if she was serious or fuckin with me. Nervously I responded Okie Dokie... And quickly left to put some cold water on my stiff hard cock and shake off the vision of fucking my sister's puffy swollen wet cunt. As we left she stayed till I was good with my vehicle,as she left and I shortly followed not to be noticed and waited about 30 minutes after she got home and looked over the fence and no one was outside,so I walked around the corner to her bedroom window I looked in to see her kneeling on the floor sucking on her female friend Angie's cock. OMG... I was cought off guard seeing her friend having a cock cause I've known her for awhile and never crossed my mind. I was shocked and now really curious I kept looking at her receiving an awesome blowjob by my talented sister saying "That's it babe, suck my cock till I cum all on your face!! Mmm.... Hmmm..... How about down my throat? Was my sister's response. That's my girl, that's what I wanted to hear Bitch!! Now suck it and I'll grant your request. About 10 minutes of good cock sucking I heard Angie say "I'm gonna cum my cocksucking bitch get ready?" Yes sweetie give it to me I'm Soo.. thirsty for your cum and then a long deep moan sounded from Angie and see my sister swallow her cum down,then opened her mouth to show not a drop was wasted as I cummed again but on her house this time. I try not thinking of my sister's lusty sex life but it's hard to then I give in my imagination and jerk off of my witness encountering or Peeping Tom evening. Has anyone ever experienced any family sex or witnessed any? Do share please to ease my mind of this. TY for reading and hope you enjoyed it. Chai....