He'll see that York's smile has returned, his lips curling into a playful expression that lights his good eye. Behind that there's something Ratchet hasn't seen from him before -- heat. His voice is a low rumble when he speaks so that only Ratchet can hear. "I wouldn't stop you."

Which brings up another question. Knowing what he does now, should he stay in the lead? Ratchet obviously has some idea what he's doing, maybe it would be better to let him guide the encounter... but it's so tempting to get them to something Ratchet doesn't know about, to see how he's react to that when he's so reactive to just kissing, so sensitive to just York's hands on his torso. Yeah, he'll lead. Keep it slow and give Ratchet plenty of chances to object, that's all. He trusts the other man to speak up if it's too much.

For now he braces himself with a hand on either side of his friend and dips his head, catching Ratchet's mouth again. He dives straight into the kiss and finds Ratchet's lips part for his tongue with little more than a flick of a request, giving him the chance to properly explore. He's determined now to find every spot that gets a reaction, to learn everything Ratchet likes as he does.