"Can you just take - a sick day? Vacation day?" Roberto had no idea how that worked .... "or just tell Scott you need the day of for reasons?" Birthday sex reasons, but Roberto wasn't sure if Scott would understand those.
"Surprise, sure." Long as Kitty didn't ask him directly Roberto could keep a secret. And maybe he'd just avoid Kitty until her birthday and the trip, that way he would not be the weakest link. No, that would apparently be Bobby.