You were home alone, listening to music through your headphones and doing some cleaning while your boyfriend Dazai was out doing errands. After a couple minutes into the cleaning, you get more into the music and start to do "the applestore girl dance" just for funzies...
"GAWWWWD DAAAAYUUUMMM."
Turns out, Dazai got home a long time ago, watching you dance like a sexy little idiot and chuckling to himself. You spun around and blushed from embarrassment but continued to dance. He came up behind you, watching your body move with a loving, playful and lustful look in his chocolate eyes. He spanked your ass before hugging you from the back and nuzzling his face in your neck "darling, I mean this in the best way possible, that thing is impressive~"