My local shop has a really cute girl working there and all the rest are ugs. This took a long time to do but from day one I was talking but allways in ear shot of the hb to the other girls being friendly and smiling and over time I have worked my way to the hb through getting the value and respect of her friends,doing stuff like smilling,asking how they are ect ect.The hb flirts with me like crazy now.When ever I walk in she smiles at me,I never compliment her I just playfully tease her.The other day she had her braces took off,I love girls in braces I think there so cute.And I said "Have you had youe braces off"? "Yes" "nice" I said.The othet time I was in the que I gave her the finger smiling at her and in front of everyone she gave it back and started laughing.The other time I said Have you any lightbulbs she said "Sorry we dont allow shoplifters in the shop" I said "What a shame I just got my tag off as well" so she laughed came from behind the counter,i put my hand out for her to lead me to them and she started skipping and holding my hand I said "OW your hurtting my arm" I am 6 foot 14 stone she is 5 foot 8 or 9 stone.she was laughing so hard.Now when I go in i stare at her like I hate her and she stares at me like she hates me to,slamming stuff down and giggling to me.I think i might ask if she wants to join me and my gf sometime but dont want to ruin anything,might wait till i see her in town......WHAT DO YOU THINK I SHOULD DO HOW DO I GET HER TO MY HOUSE WITH OUT CREEPING HER OUT,IF IT FUCKS UP I CANT GO BACK IN THE LOCAL SHOP AND THE NEXT ONE IS FOR MILES .AND THE GF DONT EVEN KNOW ABOUT THIS???????????????????/

Well, first of all, obviously it's not good that your g/f don't know. Second, your asking about a 3some. Is your g/f even interested in a 3some?

There is an example in The Game where Style has a 3some two nights in a row with 4 different women, actually. I have no idea if the method would work in your situation though.