Succulence was awesome on that regard, and is pretty much complete.
Coming of Age is still Work In Progress but with a lot of great content already.
Also WIP but worth checking out could be :
Defenestration
Glamour
Fountain of Mana
Lolita Gone Wild is just getting started but you might want to have a look considering your description.
Valiant Warrior Astrid appears to be abandoned for good... That's a shame because there was quite some content and what was already there makes up for some of the best stuff around for this particular kink imo.
Actually, by the same guy, you also had
Valentina's Story. Also abandoned. But it played a lot like Coming of Age does, so you might as well save your time and stick to CoA.
Project Sage doesn't have specifically pantiless events that I know of at this point (just yet... though it feels like we're getting there pretty soon) but DEFINITELY deserves your attention if you're into exhibitionism and female protagonists. Awesome game.
Also
Naughty Lyanna should be worth checking out as it's an exhibitionism fest.
Actually, as said above, there is a lot of games in that genre. The HH Works titles include Flash Cycling and
Exhibition Academy that you might enjoy.
I'd suggest you check the [
female protagonist] tag instead of the [exhibitionism] one if you haven't already.
Many of the female protag games, if not most, evolve around corrupting/degrading them, which WILL include some growing exhibitionism or ENF.
Ah, speaking of which, there's
Fashion Business. Beautiful game (though weirdly laggy atm) with some of the best ENF around and she's pretty much sentenced to a life of short dresses with no panties at some point. This might not 100% fit your description though, as it's definitely happening AGAINST her will and she's not taking any pleasure from the exposure (so far at least).
There. I think that should keep you busy and hopefully happy for a while.