Why is it that your Mother/GF/Wife always gets ready to be fucked

I love feeling his warm cum on my pussy when I have a cock in

Hubby wasn’t home yet so he couldn’t resist…

Not my GF, but she’s always ready to take my cock in her pussy

Hubby invited his friends from work for a drink at our place…

Pussy so good I didn’t want to stop eating it after she squirted