How do you ladies feel about ...

How do you feel about 3somes... Lately I want to have sex with a girl. That's all I've been thinking about . I want to be able to make it fun and involve my man. I trust him to the max and I think it's something spontaneous on my end . I've been with girls in the Past ... What do you think ? There's this girl I have interest in and I know she's totally be down ... Should I set it up behind his back and surprise him ... I know he's going to be shocked but love it please don't judge