Outclassed by her sister

Lauren was fuming. She'd finally beaten her sister, won the bet, and had her sister butt naked in public, but Vanessa was still winning! She was posing nude, not embarrassed at all, while Lauren still clutched her naked body, feeling humiliated. Lauren looked around the crowded beach. Everyone was looking in amazement at Vanessa, including David... Oh holy shit! Lauren noticed the raging hard, well over six inch tent in David's pants. Vanessa was giving her crush a boner! IN fact, as she scanned around the beach, many of the boys had boners. Lauren realized with burning envy that the sight of Vanessa made everyone aroused, but Lauren had been naked for hour and only got laughed at!

Feeling extra humiliated and exposed, Lauren turned back to her sister.

"G... give me your bikini!" Lauren commanded.

Vanessa, having lost the bet, had to obey. She shrugged, throwing her string bikini to Lauren. Lauren hurriedly began putting it on, but quickly discovered some issues. For one thing, her hips were far wider than Vanessa's. This meant she barely had enough string to tie the knots at her hips. Then, when she put on the top, she found her tiny breasts could not fill the cups at all. As soon as she put it on the bikini top slipped down, once more exposing her small breasts as the crowd laughed.

"Sorry sis, I guess you don't fill it out." Vanessa said, with mock sympathy...