Sisters boyfriend fucks me strangely

I was getting ready in the bath when he came in unexpectedly and took me by surprise, I was so horny that I forgot that he was my little sisters new boyfriend and I pulled him into the bathroom, sucked his cock, he licked my pussy and fucked me horny and hard doggy, nice from behind in the butt until he spread his cum in my mouth cunt and I swallowed it, I hope my sister doesnt get it out .......