im looking for like a oneshot/twoshot chapter in a yaoi, its about a photographer that get...

im looking for like a oneshot/twoshot chapter in a yaoi, its about a photographer that gets invited to his ex-boyfriends wedding but on his way there he meet an ex off his ex, thats a hairdresser/stylist, and they hook up after they find out the ex was kinda cheating on them at the same time. i also remember the cheating ex having like a bunny mask thing on his face? pls help!