Oh, that's cute. Well, it goes better than he expected at least! Dimitri's immediate knee-jerk is yes, which is a nice feeling. Byleth hushes him softly though, holding his chin.

"I'm sterile, we don't need to worry about protection. I'd prefer none, if it's okay with you- to your comfort level at least." A beat, "There is sand however, so yes, home is a fine place to be." He leans in and kisses him, to what he hopes will draw Dimitri's focus back from worrying.

"Treat me, huh? You know it isn't all about me, Dimitri. I'll take care of you, too."