Threesome/double penetration

This is my fantasy! Me and two guys, one in my pussy and one in my ass. My boyfriend seems open to it and one of my guy acquaintances is open to being our third but I am sooo scared! I’m afraid it will be too planned, that jealousy will take place between my boyfriend and my friend, or that I physically wont be able to handle it.

Help! Anyone been double penetrated before who can offer some advice?