A/N: ...This is what I thought of, after watching that episode over and over and over (it's on my iPod.)
Damien kissed and licked a path down Kyle's chest, pausing at his waistband and looking up at him, giving him one of his rare, hesitant glances. "We don't have to do this, you know. We could wait."
"N-no... No, I want to do this." He paused, adding with a bit too much enthusiasm, "I want the antichrist inside me!" Damien suppressed a laugh and continued down... Down... Down...
"Wow," said Kyle, flopping back onto the pillows and closing his eyes. "Wow."
"You liked?" Damien traced his fingers up Kyle's side. "We could go again, if you want…"
"I don't know." He turned his head, to look at Damien with hazy eyes. "I didn't know it would feel so- so dark and evil."
"That's what you get when you screw the antichrist, babe. Dark and evil's what I am."
Kyle was silent for a moment. "…Now, technically, I was screwed by the antichrist; I didn't screw him."
Damien snorted and pulled his boyfriend in for another kiss.
A/N: If you don't know what the episode is, it's the Woodland Critter Christmas one. Towards the end- "I want the antichrist inside me!" and "I didn't know it would feel so-so dark and evil."
I don't even begin to speculate how Damien and Kyle would get together.