Who knew your stepmom was such a fucking slut?
Even though she was begging for you to stop because what you were doing was soooOOooOoooOOOooo wrong... She didn't wear any panties, she purposely stood in the way and her wet cunt was clearly dripping from excitement as soon as you started spanking her fat ass...

I bet she hoped you got caught too, that way she could feel two cocks slamming her instead of just one... I guess now you're a proud owner of a new cum dumpster, well done!

[warning: consensual stepmom roleplay!]