X-Men - Wolverine/Sabretooth
"Every year you come after me on my birthday, Creed. Hunting me, my team, my loved ones. Well, it ends today."
"Oh? And what're you gonna do about it, runt?" Sabretooth taunted, even as his face was pushed harder into the dirt. He spat through his teeth. "We both know you ain't man enough to kill me. That Xavier's made you soft."
"Tch." There was a note of frustration in Wolverine's voice, followed by an angry, bristling growl. "You're right, Creed. I'm not gonna kill you."
"Heh! You see? You're weak, Logan. You're—"
"But I am gonna teach you a lesson."
There was a snikt of adamantium, and Sabretooth jerked as he suddenly felt a draft of air below the waist. The runt had cut a hole in his costume!
"Hey!" he snarled, "What're ya—"
Strong hands gripped the tear, and fully tore open the back of Sabretooth's pants.
"Let me tell you how it's gonna be from now on, Creed. Every year, starting with this one, I'm huntin' you down on your birthday." Slowly, Wolverine drew a match and then flicked it across Sabretooth's bare, hairy ass. It flared, and he used it to light his cigar. "See how you like it. And I'm gonna give ya exactly what you deserve."
"You don't have the balls to—!"
The first slap nailed his right ass cheek. Sabretooth snarled in outrage, which only encouraged Wolverine to deliver the next slap even harder.
"Aoww! Fuck!"
"Heh. Here's to a new yearly tradition, bub. This is one birthday spankin' that's gonna hurt you a lot more than it's gonna hurt me."