three way?

Vi
Before I start with the questions.. I've been with my fiancé for years and are getting married soon.. IM thinking bout bring a girl in for maybe our anniversary and spice things up a lil I do have some concerns tho have any of you girl had a 3 way before if so how was it sharing your man did you feel comfortable being with a other women did you bring it up or did your husband... and how did you fin the "other" women.. any advice or input is welcomed