Sarah must come

Sarah's pussy was purring from all the men's thick fingers in it. Sarah was helpless and increasingly wet from all the guys reaching up her black miniskirt on the bus, and all she could do was grip the strap over her head and spread her legs.

"Keep standing and cum before every stop before you get to the mall," the voice told her, "or else get one of these guys to fuck you on the bus."

Sarah was already on edge, so the first orgasm to wash over her came easily. Her pussy contracted around the fingers of two different strangers. A wave of embarrassment came too, to have orgasmed standing on a crowded bus.

The bus stopped, and the doors opened and closed.

The guys knew or figured out that she had come, and their fingers got more aggressive. Her tight, near virgin pussy was **** to accept more fingers as she was penetrated deeper and more, and her sensitive lips were pulled and pinched. Someone's thumb found her clit, and she came again.

The bus' doors opened and closed.

Sarah's nipples were swelling up and poking through her sheer white top. No hand had yet groped her above the waist, but another guy had joined in probing her pussy. She felt close to coming.

The bus turned into the mall, and was about to open its doors?