The rabbit steps forward again. You shudder to think what else she could possibly have planned for you - they've already turned you into a freak - but all she does is untie you and help you to stand on the unsteady new hooves that have taken the place of your feet. You tilt your head to her, utterly speechless and totally confused, but she just grins and looks you over.
"Don't worry," she says with a broad, impish grin, speaking in a low and sultry tone. "It's rare that we get visitors, so we're just having a bit of fun with you. You see, you're still human underneath all of that horsey. Just look..." She grabs the tip of your muzzle, pressing it inwards as the soft rubber allows it to compress and then letting it go and return to its original rate. "See? Under all that rubber, you're still a boring, regular man. But then, there's this..." The rabbit reaches down to your massive cock, flicking the nozzle on it just lightly enough that it doesn't pop open. "You see, we decided we want to play a bit of a game with you. This nozzle of yours is a seal of sorts. Keep it closed and this costume stays a costume. Pop it open and... well, I'm sure you'd make a wonderful toy."
You stumble back in horror as you realize what they've done and you try to scream, but it just comes out as a muffled, panicked whinny. The rabbit just laughs at you. "Well, we couldn't have you cheating and just asking someone to help you, could we? No, that muzzle of yours should handle that." She steps towards you again, that grin across her muzzle growing terrifyingly wide. "Just think, only a flip of a nozzle and you lose your humanity... and just to keep the stakes high," she says as she strokes your member, the whole of it stiffening and expanding just the slightest bit as it does, "humanity's not the only thing that's sealing into you." You're try to take all of this in, your mind reeling, brain having a hard time processing your situation and trying desperately to keep up. It all turns out to be far too much for you, and after a few dizzying moments you just collapse on the spot.