"Sure," you said, "I'll show you my room first."
"Are guys even allowed in the girl's dorms?" Fox asked. That was not something you expected your sister to say, but she is now your brother technically. "It shouldn't be a problem if you're with a girl," you replied, "I've seen guys in there before, but I don't know if there's a rule.
There was not a rule so you two were able to walk into your room with no problems.
"Hey Winter," Lilaia said, "Who's this?" "I thought you could see into my mind," you said. Lilaia made a pouty face, "I was just saying that to be polite you know. So you also decided to change genders, Fox?"
"Well the truth is, I didn't have much of a choice," Fox said, "You see upon learning that Winter here became a girl without asking they told me to become a boy to take her place." "Oh, um, sorry about that," you say. "I don't really mind being a guy though," Fox said, "After all my sister can introduce me to her... well, I guess, 'hot', roomates and friends."
"Wait you're into girls now?" you asked. "Well you know," Fox said, "I keep my options open, what about you sis? Are you interested in guys now?" You hadn't thought much about that yet, but the conclusion you made is.