Water slide problems

Twin sisters Mariana and Caitlyn compete to see who can slide down the water slide the fastest. Marianas bikini strings come undone with the pressure from the water and her speed and her bottoms slide off and are left behind. Mariana reaches the bottom first and in her excitement of winning she jumps up and yells to Caitlyn "I beat you! Now you owe me ten bucks!' The sisters notice that people are started to laugh and giggle and stare. Caitlyn points down at Marianna's bikini bottoms floating in the water and starts cracking up. Meanwhile Marianna screams and tries to cover.