It all started with a game

Regulus and James end up hooking up one night after a quittich game. Regulus doesn't talk to James for a month until on night in the astronomy tower when Regulus and James end up making out and this time Regulus excepts his feelings for James. They keep their relationship a secret until one night snivellus catches them and ends up blabbing to the hole school including Sirius. In this au Regulus is trans and gay, James is pan, Sirius is gender fluid and gay, Remus and Lily are bi, Mary, Marlene and Dorcas are lesbian, Pandora is pan, Barty is gay and Evan is gay and asexual. (Barty and Regulus are exs in this and Pandora and Evan are twins)