A sister who is worried about her brother's future, who is always on the verge of becoming a sex offender with his bottomless sexual desire, spends all day masturbating whenever he has free time. When she consults with her super slutty friend, she says, 'Then I'll take all that sexual desire away from him!' and has sex with her brother with a slutty idea! However, when faced with a real female body, her brother's sexual desire shows off a monster-class virility! The slutty girls, who were initially happy with his unwavering penis, are overwhelmed by the continuous refills that far exceed their imagination, and they are driven to convulsions! In the end, they are defeated by a large amount of internal ejaculation!
