F, 32

I’m in a relationship with this guy for 7 months, it’s nothing really serious. My problem is that I want to try sex with another female or even a F/F couple. Do you think I should involve him too? I don’t really know if I would like this and I’m a little bit nervous about it because I’m a little shy and I don’t know if I will feel good only with strangers around. Looking for your advice… xox