He makes her beg

Rihanna got up to her knees, still covering herself, looking around to see if anyone had noticed her yet. Luckily for her, they hadn't.

"I'll help you, if you beg." John said, looking down at her.

"What!?" Rihanna responded, outraged.

"If you beg me to help you, I'll go to your car, and get your clothes for you."

"Forget it! I'll just wrap myself in this towel and-" As she was saying this, John made her towel disappear, leaving her kneeling in the sand. "What- no!" She exclaimed, quietly.

"Please go to my car and look for my bikini." Rihanna said half heartily, clasping her hands together.

"That's not good enough." John said, as he started to walk away.

"No way!" Rihanna shouted, crawling after him. She stopped him, and wrapped her arms around his legs, hugging them tight. She looked up at him with her face at dick height. "Please! I'm begging you, get me my clothes!"