Guys, be honest: can breasts get too big?

It depends on the context, or even moment. Sometimes they can be comically huge like in anime or AI, rather than arousing. But considering that I don't have much real life experience with breasts, I guess I'll just say as long as they are reasonably proportional and don't look uncomfortable I'm open-minded

It all depends on the woman. I love breasts but not really into size. They just need to look good on the woman and look natural (don't have to BE natural per se, but a job that can pass for natural beats some crazy, overdone one).

Yes

Yes,and if they are fake that's even worse

Yes. I especially dislike oversized man-made breasts

Yes they can. I think anything over a c to small d cup is too big.

Of course they can

Especially the ones with silicone and look like balloons and going to burst

I usually find natural to be a more attractive look than overly made up or surgically modified. For instance, I prefer women with relatively light makeup versus huge fake eyelashes and long impractical nails, and I prefer some bush to fully shaved.

Along similar lines, while I'm not opposed to subtle implants, boobs that are just obviously fake are not a turn-on. I have been with women with pretty big soft, natural (even saggy) boobs and never found them to be "too large" for my taste. Women with those usually tend to be larger-figured anyway, with bigger butts and hips and some belly fat too - which is FINE with me!