Your fingers inside of him

"You know what Tyler really loves, Matt?" Brian asks. "He wants his ass filled so he can really feel like a slut."

You smile, and run your other hand down Tyler's back until you have your middle finger lined up with his asshole while you continue to slowly jerk on Tyler's aching cock.

"You ready for this, Tyler?"

"Shove it in. I need your finger inside my ass," he begs.

With a firm push, you shove your finger all the way into his asshole, causing Tyler to jerk forward. "Fuuuuck," he screams as you feel him throb in your hand.

You pull your finger out to smack his tight ass as you continue to stroke him.

"Fuck, that's it. Spank me hard, Matt. Make me your slut. It's the only way I can cum!"