Keep holding it! She can wait

She gulps. She discreetly presses her legs together and decides to hold it. For now it's not too big of an issue, so she should be fine.

As the class walks outside Ms. Haythers turns and looks at them.

"Your groups will be 5 people each. There's exactly 25 of you, so I expect to see 5 groups of 5. You have 2 minutes."

Jessica fidgets and looks around. Who should she join?