[Bonus chapter] Bonus

Ever since that night, my relationship with my sister had jumped to another level. The distance between us, physically and emotionally, shrank even closer, so that we had been so clingy with one another almost every time. 

Aside from being siblings, we had been treating each other as lovers from now on. Not only was I a motherfucker, but I upgraded myself into a sisterhumper as well. Then I would eventually become a cousin humper in the near future. But can I get much lower? 

On the day we finished our first hardcore sex, which was my longest and most exhausting copulation I had done so far, we formally introduced ourselves as lovers to the family as well as received Sister's approval for our family's forbidden relationship. Unfortunately, Sophia was not in the house at that time since she had many things to do at home. 

"What are we doing here again, Raphael?" Sister asked sweetly as we crossed arms. "Want to do it again~?"