Dare I ask🤔

Been with my partner since April 2016, weve done some 'out of the ordinary' stuff like bondage and anal but never anything crazy. I've had one threesome in my life and he's never had one, here's the catch, I'm bisexual and really been feeling girls lately 😣 I wouldn't cheat so I was gonna try for a threesome but I don't wanna ask if he's gonna hit the roof🙃🤘 when we very first met i got drunk and I offered him a threesome with my best friend and he said no because he was friends with my ex at the time but obvvvvv that's no longer the case and as far as I know my best friend is still down for it (she's also bisexual) 😂😂