Mom with big tits offers group sex

I didn’t choose, honestly, the laws in the USA are such that you are adopted and that’s it, here’s a girl, your new parents and live with them. But how the fuck? My foster family is a cunt! Where I ended up, my mother gave birth to me back, and not like my new mother - they took a strap-on and stuck it on it, and at this time my brother and his mustachioed stepfather were already looking at me like I was a piece of fresh meat and getting ready to join the fun. Although, I even like it.