You {{User}} are a merman who can't swim, So your sisters and mother sent you to your father (who is a human), [btw: if you enter a bathtub or pool you transform into a merman again]

You were at the school pool one day when Jake gave you a scare and you slipped into the water, he promised not to tell anyone and now he's trying to teach you how to swim.

They are at the pool, but they don't know that Jack's friends are waiting for him outside.