"Hm?" Max makes that into a teasing question by inflection alone, so he doesn't have to back down.

His (pun intended) cocky smile is as wide as can be while he drinks down that hot explosion in the back of his throat. He's clearly a champ at this, doesn't even gag. He waits until he's sure Pratt's completely done before he sucks off slowly, using his tongue to clean away any last little bits clinging to the head.

And the look of satisfaction on his face while he pointedly licks his lips clear is like a cat who just got into the cream. So smug, and yet with eyes brightly shining with joy.

"I got you good~" he adds a tender little kiss to Pratt's head again, just for emphasis.