They're about to do a whole lot more than handholding. Byleth leans in with that confirmation and kisses him on the lips. Chaste at first to give him a taste of what's to come. Another kiss follows, and this time lingers, ever-so-slightly parting his lips to allow his tongue to brush against the archer's.

An arm sliding around him, pulling him against the erstwhile professor with firm confidence, while the other hand cards through that silvery hair to rest at the back of his head. There's room to pull away, should he want.