The lecherous brat who was left at my house was used for impregnation and training... In just 3 days, he became a beautiful wife who was a reservoir for female semen. (Bahiko DVMM-371)

"Today is a dangerous day, please let me use the seed of pregnancy juice to mate with you and turn you into a pregnant little hole..." I temporarily took in my friend's son, Yuto, but without her husband's knowledge, my beautiful wife with her huge buttocks, whose weakness I've discovered, is now being manipulated! The pranks are getting more and more intense, and under the lecherous brat's training, I've unknowingly become a reservoir for her semen! Yuto's two friends have also joined in, pursuing the brat's sperm, repeating the pregnancy and ejaculation sex every day, regardless of whether ovulation occurs! "I am the slave of these children..."