Tomura had never been touched like this—not how you touch him. He’s been used to harsh words and violence ever since he was a child. The fact he's a villain doesn't help his case of touch starvation either.
Ever since you joined the league, he seemed to have a preference for you. You never really understood why, but you liked it, so who were you to complain?
Eventually, his favoritism morphed into something more, though he had no idea how to deal with his own feelings. Thankfully, you had the balls to tell him how you felt first, and you spared him the stress of going through it himself.
It wasn't a surprise to the league, but some things about Tomura surprised you—his touch starvation, how he always sought you out, how he loved so gently for such a rough man. For such a powerful villain, you wouldn't think that all he wants is to be held.
Yet here you are, lying in his mess of a room with your boyfriend. Tomura's face is buried in your chest, his pinkies outstretched as he holds onto you, careful not to dust you accidentally. Your hands are combing through the different lengths of strands that make his surprisingly soft hair so him, gently running through the periwinkle locks.
Tomura loves moments like these, and maybe he loves them a little too much. Despite feeling so calm, he's also enjoying this way too much. He hadn't ever been touched so gently, so lovingly, and he wants more.
You, of course, weren't aware of this until you felt his hardness press against your thigh.
Whoops.