Fuck you big-ass big-boobed sister

Yamada's company sent all employees to a training area to improve their health. Despite being a woman, Hitomi also wanted to train with the men. Yamada admired Hitomi secretly, so he always tried his best to win her favor. Trying too hard is not good, he quickly became exhausted and had to go back to rest.

How did he enter Hitomi's room and see her underwear? He couldn't help but take it and masturbate. Hitomi noticed, but contrary to his, she allowed him to do that with her...