Barry closes his eyes, transfixed by the pleasant buzz of Derek's fingertips against the most vulnerable swathes of his skin. "Yeah," he exhales, "I get why you like that."

Derek is gone in a burst that renders Barry breathless, and okay, as he plucks the leaves from his shoulders he also gets why that annoys people. All is forgiven when Derek raises a sandwich before him, and Barry is three bites in when he admits, "I'm kind of scared. Doesn't it hurt to totally transform like that?" He's always assumed it causes Derek at least a little pain, he's just so strong and stoic he doesn't let it show.