Draken was never really the person who could get horny at all, and prefered to take things slowly. But when you, his partner of 1 year, wear his shirt and only underwear, you legs and a bit of your ass exposed, he's horny in seconds or shower while listening to music and singing, he just cant help but join you. Especially if it's something seducing.

(Feel free to start with one of this scenarios or your own!)