Naofumi, before having a chance to clip on his wings on, saw Tenya's glasses on the counter and decided why not.
Since Tenya looked really good with them, Naofumi wanted to see how they looked on him.
Even though he could see a fucking thing and it was giving him a headache
He got carried away with looking at  in the mirror until Tenya walked in trying to find his glasses.

Artist - 🌀Wave-Hadou🌀on my hero academia amino