Is it normal my girlfriend wants to get breast implants for nfl cheerleading

It's a sad world when someone feels they will need to have breast implants to get ahead, it's a sad, judgmental world :(

If she's not good enough for them, they're not good enough for her.

Well...my sons ex tried out for a NFL team to be a cheerleader. They did tell her that her breasts were not big enough.
So, off she went to get them bigger. The NFL team still didn't want her. But the local NBA team did.
Was it worth it for her? She was a cheerleader for 3 years. Found other photo opportunities. Found dancing at sleezy places.
She became shallow, self centered, and a bitch.
Glad my son is no longer with her. She was also high-maintenance.
But who knows. Maybe it will work for your girlfriend. Maybe she will stay nice.
Good luck.

Google for "Mona Lisa after 2 weeks in America".

I can understand why this would effect your relationship. I would find it difficult to seamlessly continue loving a person who looked very different from the person I fell in love with.

I think of it as a kind of imprinting. The appearance of your partner becomes imprinted in your mind over a long period of time, and if they change how they look dramatically and suddenly and permanently your brain will not make the connection that they are even the same person anymore. Worse, they could fall into the "uncanny valley"; they'll look clearly different but so similar that it'll be kind of creepy.

If I were you, I'd advise her to at least try out without changing her body. She can make a point to the judges (or whatever) that she is prepared to modify her body if it's necessary for her to get the job and it's written into the contract. Better yet: if there's a way of contacting the employer before the try out, she could straight up ask them if it makes a difference and base her decision on that.

Changing the size of her breasts will have to change how she balances when she performs. That could actually weaken her performance, at least until she adjusts to the difference, so in the short term it might not give the her the advantage she believes it will.

As for you: I'd give you the same sort of advice. If she has the surgery wait and see if it's something you're able to deal with. It's okay if you can't deal with it, and it's okay to break up over something like that. On the other hand, you might find it easier to deal with than you anticipate.

Your girlfriend is an idiot. Breast implants for a shitty job? Tell her to get a push up bra. Being an NFL cheerleader is very low paying. Not worth changing your body for...Ugh... I forget out dumb young people can be sometimes.

NFL cheerleaders get paid for shit. She is going to mutilate her body just so she can conform to a practice that is going to exploit her youth for a year or two and also get horrible pay while she is doing it. But I guess if she really wants to do it you cannot stop her.