Accidental Spectacle (слэш)

Mugen was having a bad day.
Being apprehended by heroes was bad enough. No one ever got out of bed hoping to end the day propped against a wall with quirk suppressant cuffs on their hands and feet while dirty alley water soaked into the seat of their pants. But it was at least a known risk.
What hadn’t seemed like a possibility — what he would never have expected in a million years — was that he’d end up propped against a wall with quirk suppressant cuffs on his hands and feet, dirty alley water soaking into the seat of his pants, watching two pro heroes aggressively making out next to a dumpster.
It wasn’t obvious whether they were ignoring him or had just forgotten he was there. Hero Dynamight, covered in soot and with his oversized gauntlets discarded on the ground, was seemingly trying to climb down Hero Deku’s throat tongue-first; while Deku, tightly sandwiched between his partner and the wall, busily attempted to fit his entire arm down the back of Dynamight’s pants. Both were panting loudly, gripping each other with an elbow hooked around the neck in something between an embrace and a headlock.
Mugen suspected that even if he yelled at the top of his lungs, they wouldn’t notice him.