Board Thread:Questions and Answers/@comment-174.126.39.102-20130521160948/@comment-24463671-20140125195203

Karai may be an official member of the team in season 3, but I see a fight between her and Shredder happening in the season finale.

and yes, it is awkard, but neither of them knew at the time. Raph is going to get ALOT of milage on Leo when he finds out.