Drunk On a Kiss - The Chance Encounters Series, #48

A closeted guy, Will "William" Holden,  has a massive crush on his best friend, Peter Delgado, who's straight and a player. When Peter opts to be Will's plus one at a family wedding, things take a turn when both accidentally end up having a drunk shag with each other that night. The next day Will and Peter, who both remember their hot night of banging they had, talk about what happened and Peter makes it clear he doesn't swing that way and that they should just forget about it as if it never existed.
Heartbroken Will has no choice but to play along. But the more time they spend together the more Peter can't deny that he's falling for Will too. But Peter is straight, right?