No need to hide!
You can walk proudly into any dancewear store and ask for help. 90% of the salespeople will help you without question! About 10% will act snooty.
When anyone asks you if you take classes, be honest, and say no, but that your girlfriend takes ballet and she wants you to partner with her someday!
As far as ordering from websites, there are many sites, like my favorite www.nydancewear.com, that will ship to you in simple packages without a label that says "This guy's buying stuff from New York Dancewear" on the package.
To avoid the charge card problem, you can order and send them a money order.
But there are also sports-wear sites that will send you dancewear and other sports-related body wear. www.youngoriginals.com custom makes all sorts of lycra sports-wear, and they make stuff for sports, like luge suits.
Whatever you'd like, you can find, and also find a way to get it!
NOW SOME ADVICE: For dealing with your parents and living at home, two suggestions... Your girlfriend is taking ballet classes....so you get into ballet classes!!! This will pass by your parents. (Hell, even if you didn't have a girlfriend in ballet, if you like dancewear you should take ballet to build your body into that shape that looks best in dancewear!)
Second, start doing a sport that justifies lycra body wear, like biking or roller-blading. No parent would object to you clad in your body-wear for the sake of a sport!
But now the HONEST solution...just tell your parents you like to lounge around in body-waer because you feel comfortable in it!
Keep in touch! If you want to talk one-on-one, click on the highlighted "balletboy" above for my email address.
balletboy[/i]