I know a friend of mine masturbates to me and I often push boundaries slightly, knowing it's giving him more to work with. I'll snapchat him from the shower, talk about how badly I wish my fiance would fuck me more, some of my fantasies and kinks. My fiance obviously knows and is cool with most of that, even with the suspension that said friend masturbates to me. What he doesn't know is that I love the power trip it gives me & that sometimes, I also fantasize about my friend.