[ These are signs that he's always been surprisingly fond of, whether it was Dru's girlish giggle as she slit someone's throat, Harmony's supple curves and Valley Girl attitude (it did have appeal, once upon a time) or — yes, in fact — Buffy's concerns about her looks or her habit of wearing cashmere to battle rather than leather and steel.
It's something he appreciates as much as he's baffled by it.
The rhetorical question is met by muffled amusement as he grinds his hips with more gusto, eventually shifting back and angling them to enter her once more. He keeps the kisses deep, wanting the vibration of her voice against him while still remembering that she still very much needs to breathe. ]