My wife and I went to visit her sister this weekend and we stayed at her place. My wife is a BBW with a nice ass but no tits. Her sister is thick with the best ass you’ve ever seen and tits twice the size of My Wife so we were hanging out and we all went to dinner and had a great time and after dinner my Wife went to bed. Her sister took a shower and left the door open so as I was walking by, I had to stop and take a look. I couldn’t help myself looking at her amazing body I picked up her panties started stroking my cock with them. Her pussy smells so good, I got really really into. It came everywhere after I was done I went back into the living room. My sister-in-law after a few minutes comes in there, wrapped in a towel, holding her cum soaked panties. She threw them at me and asked me what the fuck was this she said she saw me jerking my cock to her, I was embarrassed and scared that she was going to tell My Wife so I apologized and I begged her to keep it a secret. Well she agreed on one condition she gets to watch me cum she dropped the towel a little revealing her big tits she told me to stroke my cock so I did she watched for a minute before dropping the towel and grabbing me by the hair pushing my head into her soaking wet pussy she got really into it and fucked my face with her fat cunt after cumming all over my face she stood up and turned around spread her ass and sat on my cock she told me I better not stop or pull out she road my cock better than anyone ever has……….