My brother and his wife, who live together at home, are struggling with infertility. - Two people who desperately want a child asked me to provide them with offspring! - I never thought I'd be able to do it with my brother's beautiful wife with his brother's approval! - ! - I'm so happy about this lucky turn of events, but... I never expected to have sex with my older brother's supervision! - To be honest, I was disappointed in the sex that was filled with a lot of work and only for my sperm... However, in fact, my brother's wife, who was feeling more than I expected, invited me later when my brother was not around, and asked me to have unofficial lovey-dovey sex that was super exciting!