Ride her thick cock

You stand up dripping in hot horsecum, putting a hand out and pushing your mistress to the bed. You climb onto the massive beast of a cock she has, pressing it up to your little asshole.

“Oh? We have a cowgirl over here!”

You grab your cheeks and spread your hole down onto her thick cock, as your ass slowly gapes open you can see the outline of her cock against your stomach.