"Y-you do?" Martin says, astonished and then immediately embarrassed by how astonished he is. He blushes brightly, even more obvious than usual, when John indicates some of the freckles on his shoulder. He knows he has some freckles scattered around there, and knows that's a spot John does kiss rather frequently, but he never put those things together. Really, he's not sure why he would have, but it's not as if he doesn't have his own particular fixations, places he likes to kiss John. Scars are just... more topographical than freckles.

"Well, I..." He fidgets, not uncomfortably, but not certain how to proceed, if he should turn fully around and let John have at it, or... what John even wants. "I certainly didn't mean to deprive you," he says with a sheepish smile.