That smug look brought a tired and lazy smile to Dean's face and he made a low, pleased noise into the kiss, his hands still stretched out above him. He wanted to just kiss him forever, and hated how sappy that made him feel, but there was something ridiculously addictive about Sam.
Laughing at that, Dean stretched a bit and rolled onto his side, to face Sam, fingers coming out to trace along the lines of Sam's throat and over his collarbone, stroking at the tattoo a little. "Gonna have to get you back for this," he replied, his voice obviously a little ruined by all the noise he made. "You're way too good at this. Where'd you learn to suck cock like that, huh?"