The intrusion had started to anger the stallion enough to want to chase her out, and he had been preparing to do just that, hooves churning up dust from the straw as he swung himself around so that he was side by side with her, teeth ready to sink into her a second time to get her moving. He didn't get a chance to, though, since suddenly there wasn't a horse there anymore. Quick to reposition himself, he faced the human that had appeared in the mare's place. The stallion had slanted eyes reminiscent of his human form and they widened in confusion, the whites showing at the corners. He still had her trapped in the corner of the stall, and she was saying his human name, giving him hers. It took a moment for the pieces to slide into place, and as soon as they did, he took a step back. After one irritated swish of his tail, he shifted back into Ivarr, still naked.
Their states of undress totally ignored, he instead focused on getting his anger in check. His entire body was still practically rippling with it and he forced himself to relax muscles one at a time, his shoulders drooping last. "You neglected to tell me you weren't human." His tone was neutral, but his eyes were boring into her. "Of all the stupid things..." Ivarr sighed. "You should have told me." It went without saying, but he could have done some real damage to her.