why do they not have 40 plus females, that would be very sexy

Noooooo !

I wouldn't be against the idea. Just because the girl is over 30 doesn't mean she couldn't be seductive. While we're at it, I'd also like to see somewhat curvier girls, like Aria Giovanni...

I agree, both older "MILF" types and curvier models would be a welcome addition for variety's sake. Those that don't like that sort of thing don't have to buy them. I am a firm believer that choice, as long as it doesn't ***** other people, is always a good thing! As long as they are good looking and seductive, I'm all for it!