No. If I go to a bodybuilding show, I am not going to be sexually aroused because to me it’s not a sexual setting (like a bedroom, hotel room, sex club, etc). But just being there—especially paying to be there—represents a form of gay behavior. Making a conscious decision to spend your free to go watch men in thongs flex their muscles for your entertainment is gay. 
x2! So many in denial on this site. Try looking at it from this point of view. A woman goes on message board for woman scandaly clad. She attends event where the women dance around on stage with very little on, and look at magazines with woman posed provocatively, is she just a admirer? LOL I think not!
If your girlfriend did the above you would definitely think she is either bi, or gay, and most likely she is trying to fight the urge to step to the other side.