"Big brother... good morning!" The morning after I returned home covered in mud, my naked sister was next to me...!? "Your H is so intense... let's do it again?" I have no memory of it, but she tells me, "I've never been inseminated before." ... Even though I desperately deny it, it seems that in my drunken state, I inseminated my sister. My sister, who always looks down on me, suddenly starts demanding to be inseminated over and over... Until my girlfriend comes back from her trip, we have incredibly compatible bodies and live a life of constant insemination.
