An Outing Of Sorts

Had my hair cut and dyed on Thursday; will post a picture at some point. It's very short but I love it! There's a free-ness that comes from having short hair (at least, when you've gone through a period of long hair as well). I think it's to do with- quite literally!- having nowhere to hide.
Anyway, what with the short hair and my insistence to be called Bruce, we had a rather entertaining discussion with the Year Sevens in tutor...
Yr 7s: Do you want to be a boy?
Me: Uh, no, not particularly. Why?
W: She couldn't be a boy. She couldn't even be a butch lesbian!
Yr 7s: (in tones of shock) Are you a lesbian?!?
Me: No... I'm bi :)
*the Year Sevens quite literally dropped their jaws*
Me: You look shocked. Sorry if I ruined your innocence!
Probably something where you had to be there, but myself, W and the other Year 11s in our tutor found it hilarious. Their expressions were priceless!!
Also, I'm still confused as to how they didn't know. Considering they were present when my (male) friend yelled 'would you love me if I had womanly legs' at me, and they've overheard several condemning conversations involving celebrities, swans, comparisons and running away to France...