“That’s why I told you so many times that I would use your sister as my training ground! You said that it would be the third time to be honest, but if there is a third time, there may be a fourth time, right? You don’t have to be a man all the time. Why don't you try practicing with your sister without being so stubborn? You don't want to fail again and get dumped, right?'' Bitter memories flashed through my mind and I failed to insert myself over and over again... My sister was the one who got me out of the endless loop of virginity. Thank you for making me a man.However, my first experience with her was so amazing that I can't bring myself to get a girlfriend...it's my sister's fault!