Plot Summary

I want to make my favorite brother my own ... Hentai sister who asks for a vaginal cum shot to have a family in the morning and afternoon and at home. My younger sister, a younger brother who has been close to me since I was little, loved it so much that I really loved it. Her older sister lost her virginity. Of course my brother's loss of virginity is my sister. The taboo desires made my sister more excited ... Wouldn't it be something I should never do?