You try to take off the gloves and head, and look for the zipper. Nothing. Rubbing your rabbit paws over your chocolate and white fur merely reinforces the fact that this is no costume - your body is that of a young man covered in fur, bunny tail, big ears, and big feet.
And a big boner. You pant for a little while after searching, and look down at it. It's pretty nicely sized - definitely a man's dick, and very full of itself. You smile wryly and wonder if it's worth it.
Jack knocks on the door. "How's it coming?" Before you can answer, he walks in.
Frozen in place, Jack in his wolf costume, head off, and you the naked bunny boy with a huge hard on.
"Where'd YOU come from?" Jack says. He doesn't even assume it's you, you've shrunk so much!
"It-- it's me, Jack. The costume - it..." You gesture weakly, then cover your boner. Barely.
Jack enters the room and comes over to you, demonstrating quite clearly to you how much you've shrunk - just 5 minutes ago you were eye level, now your eye level looks right into his chest. You look UP at Jack.
Jack kneels down and looks you over. "It can't be... " He takes off a wolf costume glove and reaches out to touch you.
There is a sudden surge of energy beginning at the point his fingers meet your left arm. It's warm and tingly, and you realize just how horny you are. You want Jack. You want his dick. You gasp and look into Jack's eyes.