On patrol..

”Hey Izuku?” Katsuki suddently says,his gaze trailing to the familiar mop of messy viridian hair.

”Hm?” The other utters,looking up at his boyfriend.

”You have something on your mask.” He says simply.

”Oh,” The other utters and detaches it from it's place to take a look at it. ”I must of have gotten it dirty earlier when i was sparring it with Ojiro.” The grenette adds.

Katsuki takes the opportunity and kisses Izuku while his mask is lowered.