Y Tu Mama reference in PoA

[Mandy]

 > Dumbledad.
> Boy Mandy, you are in for a shock. The tone of the scene you 
describe in PoA, and the tone of the triangle in Y Tu Mama Tambien 
are too different for it to be a cross-reference (unless there are 
some very weird scenes on the PoA cutting room floor). I cannot find 
the interview now, but Cuaron described PoA as a movie about a boy 
entering adolescence, and YTMT as a movie about a boy(s) leaving 
adolescence. I think that's the best way to think about the 
relationship between the movies.
  

Mandy again:
Oh good!  I can't wait. I do know enough about Y Tu Mama to know how 
much more of an adult sexual story it is, as apposed to innocent 
young teen yearnings in PoA.  Just the rating of Y Tu Mama is enough 
to show that. (It's unrated in the states, which is what they give to 
movies when the filmmakers don't want to risk an x rating.)  

But it has been mentioned a couple of times here in NY that that 
particular scene could be seen as an innocent, young teen nod to the 
adult trio in Y Tu Mama.  I was wondering if it could be a inside 
joke from Curon, who in the beginning, when he first got the job of 
directing PoA, got at lot of slack for taking on another film, all be 
it with a very different tone, with a 2 boy and 1 girl love triangle.

Just a thought, cheers Mandy