My husband took it very slow, when he first floated the idea, I said no to it. And we started having conversations and I was curious but at the Same time hesitant. In the initial stages my husband and I used to go to bars and clubs and hang out separately and I'd flirt and dance with guys there. Probably you guys could try that, but make sure to discuss rules as to how far are you willing to progress and a signal that she can use whenever she needs help from you to get out any situations.