Paedophile effect

It's when you see a girl or guy who you know is of legal age and they look hot, but only because they look sweet and innocent like a schoolgirl or schoolboy when in fact they are NOT, that's an effect, when they appear to be younger than they are they look hot.

I wish I could be with that girl, she looks so sweet and innocent
Dude!, she looks like she's 16
It's okay man I know that she's 21
Oh, that must be the paedophile effect everyone's talking about.