Bet You Won't

Rainbow Dash challenges Twilight to do something a little more daring than just looking after the library. Something that involves about forty stallions and a kiddie pool.

Rainbow Dash mentions that she doesn't think Twilight is all that adventurous. Determined to prove her wrong, Twilight accepts anything that Rainbow can throw at her.

Little does she know what Rainbow Dash can whip up with a few of the stallions around Ponyville.