Like the biscuit game ...

From Create Your Own Story

"Or there is a game i have heard about," i said. "You all finger your pussies and the last one to cum gets a spray of cum."

"Yes !" M said. But the other three get to choose where the cum sprays !"

They all agreed, in the end even R, and they pulled off their skirts and panties and started fingering.

" How do we know if any of you fake orgasms ?"i asked.

"Oh i think we all know each other's orgasms well enough to know !" M said, they all giggled.