[TOMT]Mid 2000s American movie

long shot here but trying to trace the name of a movie i saw ages ago… went along the lines of a successful guy bringing his virgin friend from his parent’s house to his own beach house..the two of them then worked in a nightclub bartending and the objective of the holiday was to sleep with as many girls as possible in a set time period , not sure it will help but a scene i vividly remember is when the guy that was living with his parents had to pee on a girl he was with at the beach as she had been stung by a jellyfish.

Any help would be so appreciated as i’ve looked everywhere and tried everything at this point to trace it :)

[TOMT]Mid 2000s American movie