My Bf came over drunk, and while we were having sex he out of nowhere says that he really wants to do a threesome. Another girl in the picture and I was like hell no. This isnt the first time hes brought it up. The other time was when he'd joke around about it? But honestly It made me feel like I wasnt enough. Idk if this is just a man's fantasy or something I should be concerned about. Advice pls. Ive been with him like 1.5 years.