Sweep The Legs!

With Heather's focus elsewhere you subtly shift your weight, seemingly trying to free her dick from your pressing body to be able to move your hand faster. Heather tries to counter this by shifting her back leg, inadvertantly spreading her legs further apart. In a burst of motion you wrench your leg behind hers and send her tumbling to the ground. And you along with her as she grabs at your hair.

The two of you roll around on the floor for a bit, the gas gathering up around you and covering your bodies. You wind up lying aide by side, almost like a sleeping couple with anger issues, gasping for breath. You feel like the slightest brush against her would make your dick explode. You also feel like a breath against your clit would make your pussy cum buckets.

You have to finish this now before it gets any worse. But how?