MRSS-146 The husband is infertile so the wife has to ask her younger brother for sex

Because of male infertility, I decided to use a sperm bank. Since I wanted to leave behind excellent genes anyway, I asked Mr. Kobayashi, a super high specs provider with an IQ of 141 and excellent motor nerves. However, Mr. Kobayashi said that he only provides sperm according to the timed method of 'delivering sperm by actual sexual intercourse'. I thought it was okay because I just said I would have sex without love, but as a husband's servant, it's uncomfortable to be hugged by a man my wife doesn't know...!

MRSS-146 The husband is infertile so the wife has to ask her younger brother for sex