u/SilverSlyr

I can't remember the name of the fanfic, but the premise was as a kid Eddie beat some other dude at a dance battle and the kid had a crush on him or something but Eddie thought he hated him so they argued a lot.

Cut to present day, the 118 end up rescuing the guy and Eddie is immediately hostile at his intrest in buck so to get back at Eddie the guy asks buck out with the intention of just revenge on Eddie. It winds up with Eddie kissing the other dude instead of Buck and then there's a emotional talk and Eddie buys a bunch of mouthwash at a cornerstore to use before Buck will kiss him.