I have a stepson who ejaculates in my anus while he’s wearing panties and wants me to insert a mixture of milk inside me

Somehow though, the urge to slap the shit outta him for ruining my panties and eagerness to fill me with milk is strong. It's strong enough that I'd have my stepson. I beg him to continue by his big cock thrusting into my tight ass. A wild, kinky ride ensues.