Genos can't blush and Saitama doesn't know if he's upset by that.

"It's weird, noticing after two months how close they are, but he does and it's /weird/ and not entirely that bad when he thinks about it." In which suddenly living with someone is serious and not-so-serious business, and someone has to ask the heavy questions. SaiGen pre-slash, ridiculously wordy introspective fluff.