[If asked, Rex would argue that Mark's butt was cuter and rounder. A bit perkier, too, but that's probably an age thing. Omni-Man has the kind of muscular ass, that, if you hit your head against it by accident... You'd probably end up snapping your own neck.]

I told you already- I'm an ass man! Of course that was the reason.

Speakin' of which, when are you gonna let me take a crack at that thing? I'd have grabbed it by now, but your reflexes are fucking terrifying. Wouldn't wanna be whacked all the way to Mars just 'cause I made the wrong move! Hey.

[Rex finds himself distracted by the noise, tempted to lean over and press his lips to that sensitive patch of skin, only to be surprised by Mark reciprocating.]

Nah.

[A lie. Now that he thinks about it, he is sore. The back pain comes and goes, intermittent and ever-present. It only improves sporadically with yoga, meticulous stretching, and adequate rest. A reminder that his body was once mortal, like those of the common people he despises so much.]

Not more than usual, anyway.