Tanner Mayes is pretty young, and young-looking. Quite petite, as well.
Brandi Belle is another one I like. Granted she's a good bit older (though still playing the lolita-type character) but she's very petite. A freak, too; I've seen a number of her scenes and I like her style.
Couple of hot young British porn stars. I like them anyway. The blonde is called Layla Lee and the Brunette is a Scottish girl called Kaitlyn Andrews. Kaitlyn Andrews has done quite a few scenes, a couple of good dogging ones too. Sorry if I added too many pics, got carried away. Here a a few links to help if you're interested: