Well, the two girls I did the threesome with, neither one was my gf like I said. And, also they were best friends and have known each other since they were 15, so I think they have experience at that because it sure didn't hurt their friendship.
Most guys accidentally kill attraction before they even speak. They assume they need a bigger bank account, a better physique, or smoother lines. They miss the point.
Female desire operates on a specific set of psychological triggers. Break them, and you're invisible. Follow them, and you become magnetic.
I learned this the hard way. Years of freezing up. Getting friend-zoned. Watching other guys walk away with the girl I wanted. Then I discovered a set of 22 simple rules that rewired my entire approach.