"The moment she becomes a mother... I'll impregnate her too." The younger sister and her husband are in the midst of a happy birth. The divorced older sister is filled with jealousy as she sees them. "My sister is such a useless girl... I can't forgive her for having so much fun with my sweet husband." One day, while his wife is away, she witnesses her husband trying to masturbate. After 10 months of abstinence, he feels like he's about to burst, and an electric shock runs through his body. She can't help but attack him and have sex with him, forcing him to cum inside her. She falls in love with his incredible, insatiable penis and immerses him in pleasure until he becomes pregnant...