Any one else's boyfriend like this?

My boyfriend told me upfront that he would love to see me having sex with another guy. That he imagines me having sex with his friends. (But he doesn't have any urge to have sex with anyone but me) I've mentioned it when talking to my girl friends and they think that it is weird that he is like this. I mean I would do it for my boyfriend if he approved and such, cause I'd be into doing a threesome or experimental things like that. But do you think that it's weird that he's like this?