Her first time tonight, and questions

Hi everyone! My wife Clarissa went on her first date tonight. It's been something that she's always have wanted to do, and I've wanted her to do it. We meet the guy she is with through another site. And had coffee with him before today. After some erotic pics that we took of Clarissa and sent to him one thing lead to another and she got dressed up tonight and left with him. This is what she was wearing when she left.
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Since we have never done anything like this before. And she hasn't come home yet. How is this first time going to be fore her? The that she went with is a older guy, that has said that he has done this before with other couple's and first time wife sharing.
I would love to be lucky enough to be a FWB