My twin sister and I became closer than ever (PART 3)

For reminder, I'm M20 and she's F20. I previously said that in order to prepare me for my confession day to my crush, my sister made me make out with her being on top of me for about an hour.

That same night, we slept on my bed very close to each other. She was hugging my neck and I was struggling to keep my erection off her all night. I also noticed she wasn't wearing any bra and she was in her tank top and it barely kept her voluminous breasts in. The next day, she woke up with a smile and left my room like nothing happened. I was still left with sheer confusion and embarrassment about being involved in an incest thing. Sure, I love to think Sanaa is hot but never would I want to do this.

Idk if it was related, but after kissing her, I got ill for 1 week with sore throat, and coughs. My sis Sanaa was with me the whole time, taking good care of me. We slept almost everyday together and we hugged way more than what we used to. She introduced me to her new girlfriend (believe me, she broke up with her just 1 day after).

Anyways, I really tried to forget us kissing so I tried to move on. The day to confess, I confessed to my crush following all the tips given by sis. She felt the same way as me, and we decided to give it a relationship-go. Hearing the news, my sister got suuuuper happy that she kissed my head. She said stuff like she wanted to meet her (I didn't want to make them meet, knowing my sister could steal my girl).

Then one day out of the blue, she came in my room with a serious face and she said, "Do you think I'm hot?"

Idk if she had some issues, I tried to tease her but she knew I do think she's hot. Then she asked, "Am I a good kisser?". Legit I thought she forgot about this, but she brought it back up, so I just nodded my head. And here's the part that really scared me and I felt like no matter what, she was being in total control of me: "Can't say the same about you. If you want to make her happy, we have to train more together."

(Part 4 later)