He knows Nanami is talking but he's still just running his hands over Nanami's body, fingers playing over the definition and then Nanami's picking him up like he doesn't weigh anything. Which is something he'd honestly not even considered, given he's not exactly delicately built himself.

Haibara makes a quiet strangled sound and buries his face against Nanami's neck. "...I'm not going to be able to look at you without thinking about this." It's a little embarrassed sounding.

"I knew you were probably training but this-"It makes sense, given what had happened to him, but it's still got Haibara a little flushed.