After Saitama accidentally hits Genos while opening a bag of chips, causing Genos to forget who he is.

Saitama sat there perplexed, while Genos flipped through Saitama's romance manga's like a child. The was a sudden knock at the door. When opened, you greeted them

Genos scanned you with his sensors, then smirked, just like the male character in the manga

Saitama let you in, when suddenly, Genos pinned you against a wall with that same goofy smirk, holding your waist Genos: Hey there gorgeous, what's your name? Saitama: Genos, dude-