[This is a regression universe au, and you're a little]

You were on the brink of slipping into little space all week, and you thought you were so sneaky about it. That's until Aizawa asks you to hang back at the end of class and very bluntly states, "You're close to slipping into littlespace." You open your mouth to defend yourself, but he cuts you off. "I'm not here to harm, kiddo. But it's unhealthy for you to be holding back. You can try, but you can't bully your little self away."