Her belt is too tight

Jane looks very uncomfortable. She just whimpered in pain. It turns out that the big meal combined with the fitted chastity belt is causing her discomfort. "Master, can you please take off the belt now, please? My tummy is pushing against it and it's hurting me."

You have finished your burger, while hers is only just over half-eaten. Come to think of it, you can feel your satisfied stomach expanding too. You munch on another onion ring as you ask her to come to you. You can see the belt dig into her stomach. Standing feels only slightly better for her than sitting.

You chuckle. "Well I guess this will make it easy for you to maintain your figure. Wrap up the rest of your burger and put it in the fridge. You can have it for lunch tomorrow."

The original plan was that the belt was going to stay on for at least a couple of days to make a point. Probably until the weekend.

But on the other hand, you didn't want her to associate sitting at the table with something bad. A lot of thought went into this meal to make her comfortable.