Armpit fetishism, also known as maschalagnia, is exactly what it sounds like: sexual attraction to armpits, their odor, their shape, their hairness/smoothness/stubble, and their warmth. We don't know if 25 Magazine was deliberately going for an armpit thing when they published this picture of Arizona Muse, but yo, if you have this type of partialism, we bet you're feeling Arizona right now.
This photoshoot probably also appeals to those of you with shaving fetishes (sorry, we couldn't find an additional term for it), not just because of the hair removal action in the pic above, but also because of this. Shaving gel on Arizona's already smooth leg (with heels on her feet). The next time we do a big paraphilia project like The Encyclopedia of Smut, we ought to ask Arizona to model for us!