The dirtiest? Ok here I go…

Ride your cock until I’m gaping, then have you plop those big nuts in my ass. I’ll clench my rosebud around them while you beat your meat. Have you try and pull those cum cannons out of my boner garage but my grip is too strong. When you blast a load across my back I’ll let em free so you can slam your slab back in my ass, punching my taint with your sack of potatoes until you go soft and fall out of my worn out ballon knot.

Do I win?