Yes they do. Of course they do. You know that now, after you followed the sound of those echoing grunts that sounded like a mix of a growling beast and a woman in pain or ecstasy.
"Ah! W-welcome," she said between thrusts. "Once you're done changing you can have sloppy seconds." After a moment of shocked confusion, you doubled over, your skin crawling, and began to growl yourself...