Sensual Jane has a rack that won't stop. She has great skills with balls and sticks. Maybe not on the pool table but it's suspected that Jane was letting Thomas help her so he'd be behind her and she could wiggle her ass against his junk. Whatever the reason, Jane is having a good time and having a giggle and that's what counts. She is about to perform her own rack attack on him by distracting him so he scratches. And you know what Jane's weapons of mass distraction are. No one can beat Jane at this game, not even a modern-day Minnesota Fats.
Jane is usually on the serious side. This time, she's in a laughing mood. Thomas' attempts to correct her pool strokes are not working and that cracks her up.