[There's a very odd sense of relief and anxiety swirling through his chest as she starts tugging at his shirt. On one hand this is still okay, if even marginally so, but on the other he's really not too comfortable with being undressed. He bundles up for a reason, all too aware of how much his physique differs from the ideal and it's difficult to rewire that thinking even though it's pretty obvious by now that she doesn't mind. Might actually... like him the way he is.
His stomach lurches but he doesn't stop her, just pulls back from the kiss a little to draw a breath and nudge their noses together. This is okay, just barely, but he trusts her too much to end it prematurely.]