errrrr you dont force your girlfriend to do anything she doesnt want to do,and i truly hope that if she does you reassure her that you will love her and only her whatever the outcome.I sincerely hope that youre not one of these "men" who gets off seeing their girl get beaten(i dont mean in a friendly or semi competitive match) half senseless.
My idea would be to play fight with her yourself,a little bit of light wrestling and make her feel relaxed.Dont try and pin her down you could frighten her.Sort of fun wrestling foreplay as well but dont hurt her.If she seems to like it tell her you enjoy seeing 2 women wrestle.most women will see wrestling as harmless,but a lot dont like the idea of men liking catfighting.More to the point they think its weird.
Go very slowly and you may find she will have a wrestle with one of her girlfriends but dont force her into anything she doesnt want to do.And as i say at the start always reassure her you love her and any wrestling match wont change that whatever the result.That way shes more likely to wrestle if she knows theres no high stakes like losing her boyfriend
