Press against her.

You embrace her tightly with your naked body, allowing your shaft to press directly on her pussy. She grumbles, and begins to wiggle her hips back and forth. To your dismay, she may defeat you before you defeat her, as these melodic movements start to inch you closer to orgasm as well.

You accidentally let out a grunt, and she smiles wide as she begins to wiggle her hips more, moaning more as well.