"One more!" the Puma teased, letting the stiff sock bump up against the zebra's muzzle.

The zebra let out a long winded whine. He'd have complained verbally, but the dirty brother to the previously white sock with a grey toe/heel filled his maw.

"I'm not going to slip this around your muzzle like the last two, rather..." the feline gripped the lock on the zipper pull and exposed more of the sock-gagged muzzle, "...I'm going to sit it ontop." The blackened paw pattern on the bottom of the toe sock was placed right on top of the flaring nostrils of the victim.

The zipper slid up on the hood's pouch easily, round the well worn sock muzzle, across the top of the nose and up to the forehead. The tight fitting hood was a stark contrast to the lumpy muzzle, but the puma didn't care, the lock clicked shut through the zipper pull and the d-ring regardless of the shape. The muzzle belt followed suit, cutting off any air that could get in around the socks. The zebra groaned as the leather outer shell forced is breath through 3 layers of rancid smelling paw covers.

"Hey, you've come so far already! I mean, two months ago you said you'd rather stay in chastity because you'd never do this. Yet, here we are." A wide grin cracked over the puma as a hand petted the zebra's leather encased head. "Besides, we agreed that before you were released, you'd have to orgasm from inhaling nasty socks."

The cage twitched, the zebra's cock trying to pump blood into the restricted member, the only thing it accomplished was to jump up an inch or two and clack the piercing lock against the locked chastity device.
"See? You're already leaking like a champion. I told you you'd learn to enjoy dirty socks. I bet in another few months, you'll be able to orgasm without effort!."

The zebra whined again. It would be the last time he gave the keys to his device to the Puma... one way or another.

"Goodnight!" The puma giggled, the zebra falling back into his bed and mutely moaned as his cock stressed against the cage again.

*****
I think the perspective is a bit wonky...