He wanted to take her somewhere where her sisters' judging eyes weren't going to spy them, at least for a while. He reluctantly removed his hand from its quest and steered her away from the main room towards somewhere people wouldn't be interrupting them. He remembered seeing a bedroom set up that wasn't where he had taken Hybris, which was fairly empty (although not quite).
The blessing of this dress was he didn't even have to wait for her to undress to fuck her in it. He fiddled with the clasps at the shoulders, but couldn't figure them out. His normal response would have been to rip them open, but perhaps not today.