Curious about a threesome

I have always liked girls, theyre so beautiful and sexy Growing up When i did watch porn i always leant towards girls masterbating or girl on girl. Hearing a girl moan is such a turn on! Well i never dated or been with a girl, now im married and been together for over 5 years. I want a threesome more for me than for my husband I'm the one who brought it up not him. So asking advice how can i find a girl whos bi for a threeway? I dont want to come off creepy you know lol