Sister in law

one day I came home from work to find my wife and her sister sitting in the kitchen it was a very hot summer day my sister in law just turned 21 and she has a very nice body, she had on some very short shorts I could see her butt checks when she would stand and walk around the house. my wife and I had planed a cook out later in the afternoon, so she asked me if I would take her sister to the store to pick up some food and some liquor. my wife name is andrea and her sister is Bianca, so Bianca and I jumped into my truck and headed off, she started to tell me that andrea was lucky to have a guy like me and that she was very attracted to the way I carry myself, I noticed that Bianca started to open her legs and was rubbing the inside of her thighs her shorts were so short that I could see her pussy mound peaking out, and I also noticed that she did not have on a bra under her tank top Bianca has some perky b-cup size tits with medium sized dark areolas, she caught me looking at her and asked me with a devilish smile ( do you like what you see ) I told her she is a very pretty girl, I was getting a hard on and Bianca was looking at my dick print in my pants she asked me if she could touch it, I told her sure go ahead. my dick was so hard that it was throbbing, Bianca told me that if we were to start fucking that she would not tell andrea and it would be our little secret, at that time her sister called me and asked what was taking so long, a few minutes later we pulled into the drive way and started the cook out. as the day went on andrea ,Bianca and myself were drinking and playing music after a few hours Bianca walked up from behind me and grabbed my dick and whispers in my ear ( I want you to cum I my mouth ) I asked her where is andrea , Bianca told me that she passed out 15 minutes ago. before I knew it Bianca dropped to her knees and started to suck my dick right there in the kitchen, she was finger fucking her pussy and telling me that she likes it in the ass. I stood her up and pulled those shorts down and bent her over the sink and fucked her. her pussy was so wet so hot and tight that I almost nutted inside of her, then she asked if I had some lube I said yea , so I went into the bedroom where andera was sleeping and got the lube from the nightstand, when I walked into the living room Bianca was on the floor with her ass in the air and holding her ass cheeks open and telling me (come stick it in my ass daddy ) so I put some lube on and fucked her deep I the ass hole, Bianca was cumming so much that pussy juice was running down her thighs. she kept telling me to cum in her ass hole and I did, then Bianca surprised me and quickly turned around and started sucking my dick getting every last drop of cum from my balls. she licked her lips smiled and said that she has been wanting that for a long time. Bianca put her cloths back on with my cum still dripping from her ass hole and went home.