Mistress Gaia did not like how fat her slave was becoming. All he did was eat and sleep besides doing the small duties she gave him. She had to make sure he went to the gym and lost weight and also toned his muscles. And since she knew he would not do it on his own, she decided to make him do it. She crushed and kicked his balls while he knelt before her. The pain was so much that he agreed to exercise in order to avoid it.