He's honestly not sure which part of what Dan has said leaves him the most breathless, that he wants so much or that he cares so much, but either way, Marcus can't respond directly. His voice feels caught in his throat and what ends up slipping out of him is more of a muffled sort of whimper instead of anything that might make sense. It gets the point across anyway, he has to imagine.

"I care about you, too," he manages to say after a moment before he rolls himself forward, on top of Dan again. "So much."

The rest, his absolute pleasure at giving Dan anything he wants, it has to be evident in the way he kisses Dan again. The way he touches him, skimming his body with his palm, tracing muscles and lines of bone, learning and mapping every bit of Dan's skin that's available to him right now.