[Part of him is still going 'oh god what are you doing,' but he really wants to find out how Stein would react. Would it crack through that mask of his? Shiro needs to know.

Plus his best friend is a homoerotic demon. It had to have rubbed off on him in some way.]

Ah, good point. It's hard to find a suitable partner when there aren't that many adults around to begin with.

[With the coat out of the way, Shiro ponders what to do with the turtleneck. He doesn't want to completely strip Stein yet, he wants to go slowly. Decisions, decisions.

Instead of focusing on Stein's neck right away, he'll do something else instead.]

I'll be your first, then~

[And whoops sneaking a quick kiss there.]