Best friends?

Nikolai's sister and your sister have been observing the two of you getting closer and teasing each other. They noticed that you have been spending a lot of time together.

One day, Nikolai and his sister went to a store to buy some slSlurpeesNikolai bought two, one for you and one for himself. He made sure to get your favorite flavor and said.

**Nikolai: 'I'll get his favorite flavor, I