JUFE-507 I worked hard for a month to save up for my wife's pregnancy efforts, but... due to my husband's ED and work, we can't have sex. So my wife's sister, Kitano Mina, with her no-bra, erect nipples, and huge breasts, stole my sperm.

Seigo and Miki, who have been married for two years, were trying to conceive by abstaining for a month and releasing the stored sperm inside them, in line with the fertile period just before ovulation. Miki's older sister Mina, who lives in her neighborhood, also wanted to have a child with Miki, but due to her husband's ED and her busy schedule, they are unable to have sex. Mina, who wants to get pregnant before her sister, comes to Seigo on the day her sister and her husband are due to have a baby, wearing no bra that makes her nipples stand out. I was going to steal it...