Enjoying My Sister's Cheating Husband's Cock Behind Her Back Regularly

I was living in my sister's place for a while. She really couldn't please him sexually like he wanted to be when he was horny. She confessed to me that he wanted to do oral sex and she wouldn't. I decided to take the opportunity of getting him to fool around with me. I've seen what he has and it looked enticing.
I'm a chunky curvy gal with small breasts and wished my tits was as big as my sister's. The only big part of my body is my lower half. Wide hips and fat legs wishing that I didn't have besides the fat on my belly.
My sister's husband was alone with me at times while she worked. Then one day I decided to entice him and see if he has any interest in me. I wanted to be a very naughty sister-in-law getting some sex play. I was dressed skimpy and was cleaning the kitchen. He stood at the doorway starring at me. I was at the kitchen sink with my back to him and wiggling shaking my ass. He did what I wanted wanted him t o do. He started rubbing my ass and pressed his groin into my ass and squeezed my nipples. I in turn reached behind me rubbing his rigid penis. He pulled it out and I squeezed and tugged it. I turned around went down with my breasts exposed while putting his dick in my mouth and blowing him. I heard him say, " Oh baby suck it good ! " I kept up with my blow job and told him I wanted to be eaten. I leaned back onto the table and placed my legs on his shoulders while I held his head in my kitty. He ran his tongue in and out of my c**t and sucked my erect clit until I gave him my fluids.
That day we bounced around in the bedrooms and showered while soaping each other getting climaxes. He and I kept our sexual activity a secret from my huge breasted sister who doesn't enjoy oral sex. My brother-in-law comes to my place now and we sexually please each other. I got him into anal sex which he enjoys just as much as oral sex.