What happens when you get two teenage girl BFFS alone in a pool?

Pool Conversation

It would start out innocently with the two girls just swimming around, lazing in the pool. Then, suddenly, the casual gabbing turns into "OH EM GEE!" stories that end with tons of laughter and giggles or jaws dropping and the occasional *gasp* NO WAY! This seems reasonable considering they are teenage girls. Moving on, the girls start horsing around and daring each to do things like swim to other side and back while singing a Little Mermaid song at the top of their lungs or screaming underwater until they can't breathe. Laughing and giggling volumes raise higher and higher and it's seemingly unbearable! But just like that the laughter and gasps stop and girl#1 has to leave. But, just before they get out of the pool, they hug and girl#2 undoes the girl#1's bathing suit and climbs out of the pool fast, grabs both towels and runs inside. Back in the pool, you can hear girl#1's screams of "GET BACK HERE WITH THAT TOWEL!" and "I WILL KILL YOU!". Eventually, she manages to do up her top and get out. Girl#2 finally comes back and gives girl#1's towel back to her. They laugh and hug and say goodbye like nothing ever happened and the whole adventure is concluded!