You round a corner and stop, face to face with the wolf pen. The pen itself is inside a building, but it's in the general direction you were headed, so you're able to pull the girls inside without any protest. Alli still clutches your hand tightly, while the two other girls trail slightly behind.
Inside, the wolves are contained in an open-air bit, recessed into the ground by about a dozen feet. You drift slowly towards one of them, marked with a placard that says "GRAY WOLF" in bold, black letters. As you move closer, you step behind Alli slightly, letting her take the lead as you glance down her backside, stopping on her tight jeans. You begin to drift, imagining a long, bushy wolf's tail emerging slowly from her jeans as her wet, black-lipped pussy moves towards her behind.
She stops suddenly, breaking you out of your daydream, as you realize you don't have to wait any more.
Alli is staring, wide-eyed, into the pit at a lounging pair of male wolves. As she does, you hear a sharp breath escape her lips, which slowly escalates into a moan. She quickly brings her hands to her lips, letting go of yours, but as soon as she does another moan escapes them and her eyes roll back in pleasure.
Alli's shaking right hand traces slowly down her exposed stomach. She looks down at it, as if unsure what it's doing as it descends beneath the waist of her jeans, the button popping open. Her fingers slip beneath her panties, just as you and the shocked girls begin to hear the sound of stretching flesh and popping bone. Alli, terrified now, removes her pants and panties entirely, kicking them to the side.
She looks down at her sex, terrified as it seems to be moving backwards, further between her thighs. Her lips are moist and darkening, changing to a deep black as they come to rest just below her anus. Her right hand goes back down of it's own volition, massaging her clit as she looks up at you, staring you in the eyes, a strange mix of pain and pleasure on her face. Her lips, quivering, move slightly as she whispers the barest hit of a word, pleading. "No."