So a short summary of me and my girlfriend.. We are in our mid 20s and have been together for 5 years. She hasn't been with another guy as I was her first. We have a great relationship but she has admitted that she regrets not having fun and experimenting before she met me and thinks the idea of only having sex with one person in your whole life is depressing. I have secretly had this fetish of showing her off / having her do stuff with other guys for years but just recently mentioned it to her when she was talking about the previous thing. She is kind of up tight in normal life but she said that the idea is interesting. She has also told me, when i've tried to get out of her what types of things turn her on, that the idea of bdsm or "blackmail" is exciting since she is normally just going to wuss out of doing anything that would be a rush. That is basically where we are. She seems like she would be interested in some or all of those things but I don't really know where to start. I don't think we have any friends that we wouldn't feel weird about her hooking up with. I also dont know how good of an idea it would be to just find a guy on craigslist or some dating site. She's said maybe we could start slowly with something other than just straight up sex with someone else but I don't really know what that would be. Have any of you had any experiences like that that would be considered "light" sharing / showing? Suggestions?