You your cock down his throat

Seeing how he seems to like a bit of pain, you pinch his left nipple... hard. He gasps and you exploit the sudden opening by pushing your cock deep into his mouth. Your right hand pulls his head closer while you continue to pinch and pull his sensitive nipple.

He struggles a bit at first, his hands coming up to push back on you but his efforts seem surprisingly weak and easy to avoid, so you push on, sinking half of your long, fat cock deep into his mouth. Soon you hit his throat and make him gag the first time.

"Come on, little bitch. Suck it down like a good little cocksucker... I can see how much you love it!"

You change the grip on his head so you can reach down and grab his fat balls, squeezing them hard and making him involuntarily suck your cock deeper into his throat.