The door opens - you must not have locked it - and the Pledge looks into the room. A tall, muscular Junior, the frat's pledge master blinks when he sees you, then grins broadly and steps intot he room, shutting the door behind him. "A donkey, huh? I was wondering if any of you pledges would be so stupid as to try that."
Stupid!? You frown and try to think of something to say, but it's hard to think of anything but the huge shaft that you are still masturbating. The Pledge Master puts the silver bridle down on the desk and comes over, walking around and inspecting you as you continue to stroke your enormous shaft.
"Yep. I can see you overdid the pills, and the size of your dick has to be the result of slippage. But you did a good job on the whole. Your eyes look perfect, and the muzzle and ears are aligned well. Once you get the hooves on, the rest of it will settle in."
You feel growing frustration, not with the Pledge master, but with your need tore lease. It is getting difficult to masturbate - your arms feel stiff, and your elbows don't bend as much as they did. The Pledge Master wtaches a moment, then grins. "You'll need some help finishing up. Hold out your hands."
Feeling a little thick headed and confused, you do as you are told. he slips onthe forehooves and tugs them into place. Your fingers suddenly get numb and heavy, and the edge of the fur toppers adhere to your wrists and blend into the donkey heide already there. "OK. Now lift your feet one at a time." In another minute, you are standing on donkey hind hooves which have attached just as perfectly as the forehooves.
"You still have a 'problem,' don't you?" The Pledge Master grins and starts to stroke your penis, which has remained huge and erect. You gasp at the difference in having someone else masturbate you. He is using the heavy foreskin that has formed around the upper shaft, and you give a moan of pleasure as precum starts to spurt.
The Pledge Master gets some of the pre on his hand and reaches up to rub it into your throat. You try to ask why, but all that comes out is a coarse braying. Then his efforts bring you finally to ejactulation, and you bray loudly as your huge balls empty themselves in a firehose gush that splatters on the wall.
As you shudder in release, you feel dizzy and disoriented, and fall forward. You catch yourself with your forehooves, which make a loud thud on the carpet. The Pledge master laughs and starts to pet and stroke your neck and muzzle. "Oh, you are gonna be a perfect Mascot for the Frat! Just a little more work here and there." You feel very strange as he pats and rubs your forelegs and back - but the strangeness passes quickly, and being on all fours feels perfectly natural now. After a careful walkaround, the Pledge Master works your neck, and then finally rubs your muzzle until it is pushed out into a full animal snout.
He steps back and grins. "You're a total jackass now! Looks like you even matured a little - I'd say you're the equivalent of a 25 year-old human. Prime stud years for a donkey."
He walks over to the desk and picks up the bridle. So, you want me to put this on now? Or see hpw you like being a jackass at the party?"