Girlfriend Transforming into a Rhino (Patreon)

You're on a hike with your girlfriend. She stops and says, "I feel really fucking weird..." She doubles over in pain. Her nostrils flare and expand. She screams. You see horns starting to grow out of her nose. She says in low, guttural voice, "What the fuck... is happening to me..." Her shoes explode as her feet grow. You see a fucking tail dangling from her. Her skin is turning grey and wrinkled. You're not sure what to do.