Ok, please don't bite my head off for this, but I seem to remember reading somewhere that Tifa's clothes were designed to contrast with Aerith's, and the staff voted in favor of a mini skirt over (short?) pants. I will try to find the source, though I fear it might just be unsupported on Wiki. Was hoping one of you might have something more concrete on that.
Well, I thought Aerith thew herself at Cloud
way more than Tifa did.
If
only dressing revealingly (but not throwing yourself at a guy) is "slutty", then may I be excused for saying that being flirtatious is also "slutty"? After all, in the first case you're only dressed to look sexy; in the second case, you're advertising your "availability". For whatever.
In that case Aerith is "sluttier" than Tifa is.
Tifa holds thoughts of a guy in her head for years. The only thing he bothered to do, as far as she knew, was give her personal notice that he was leaving town. Did she guess why? Probably not. For seven years, Tifa thinks she hasn't seen the guy; for at least five years, she thinks he didn't even bother to write to her.
But she still clings to the memory of him, AND THAT MAKES HER A SLUT.
Compare that to Aerith. Aerith got to know Zack (and they were presumably in a relationship), and she didn't hear from him for five years too. Now, she may have figured out he copped it and was just in denial - or she might have just felt some form of disturbance when he died. But at any rate, she latched right onto Cloud -
in spite of promising Zack she'd wait for him.
Since this behavior is quite different from Tifa's (who is a confirmed slut), we can conclusively state that Aerith is NOT a slut!
Please note - my personal opinion is NOT that flirting makes you slutty, or that Aerith was wrong for not "waiting" for Zack. I'm just trying to show how stupid some arguments can be.
Btw, do we know that Tifa isn't wearing really short bicycle shorts under her skirt? I don't remember ever glimpsing her undies.