In the meantime, I'll repost S's appropriately ridiculous neoteny holstaurus design (unfortunately you won't be seeing her in-game this month, but soon!):
Also, S is still working on the vanilla Stallion design, though he's settled on the direction he's planning on taking them, but I'll keep it a secret until you guys can see his concept.
We're also planning on changing their name. Don't worry: the Borderlands 2 reference will stay intact, but we're going to be giving that particular name to one very rare and very special Stallion (you might already be able to guess what's special about this rare Stallion :P).
Anyway, we've considered a couple options: Just calling them Stallions (no Butt), or maybe Equines?
Any thoughts or suggestions are welcome, particularly on the new name.
And here it is, the concept for the new vanilla Stallions (note, cock not featured here as S is brushing up on his horse penis drawing skills):