The person who picked me up when I ran away from home was a sister in the neighborhood. With a contract that says, "It's okay to stay at home, and in return, don't refuse sex," I continue to have sex all the time when I'm at home. - My sister and my sister come in turn, and when my sister is eating with her parents, she has sex with her sister. - When my sister is watching her parents in the living room, she comes to the room while taking turns many times, such as having sex with her sister. Thanks to this, the sperm is always empty.