He takes the tissues and uses them to get the rest cleaned up, one arm tucked around M to let him get all the warmth and scent he might want. Clark's enjoying the closeness too, honestly. M feels... good. Solid. He likes this, a lot if he's honest.

"I don't know, you seem pretty sweet to me," Clark says, entirely earnest, and he means every word. M's been so affectionate and open and made him feel so good, both from the sex and just... feeling like he's just another person. Another person with powers, yes, but that that... doesn't stop him from being just another person. It's something he really enjoys, this weird 'not normal but not a freak' kind of feeling. It has him leaning over to press a kiss to the other man's temple.