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Azusa is a huge school girl. Playing with my younger brother who is still small. The homeroom teacher is going to visit the home today, but the teacher is rumored to be a virgin. I wonder if she will come into the teacher's room while I'm cowgirl on my brother. I'm sorry, Onee-chan likes virginity. It's embarrassing because I have a constitution that can't be in estrus without worry unless it's someone who doesn't know a woman other than my sister. But if the other party is a virgin, my sister will pant like a beast and do an amazing cowgirl position...