Great question! While not specifically asked, I think it is very important to point out that results and the opinion of the patient and partners almost always change over time. This means that many procedures are met with less favor, particularly from the patient's view, until 3, 6, or even 12 months out. Overall, it usually gets better with time.
I have had multiple partners, and my overall opinion is they (partners) generally do not think of anything as fake, UNLESS go take it too far. These are rare procedures to the public view, and as such there is less thought of such. If these procedures were as popular as breast augmentation…different outcomes. If you have a partner who knows or has seen before and after, that will pose a likely recognized outcome, particularly if short time lapse between procedures. Follow your post-op care with care, use only good doctors, and your odds are good that you will receive a boost in confidence and outlook.
For those you DO TELL, it's case by case - most will affirm you are fine and do not need it - which is both true and thoughtful. But if you associate it with you want it and liken it to a girl getting a boob job, most will support you and give honest feedback. Be aware, they will not understand the risks, and there are more here than in a common boob job.
Tip: I suggest you have a trusted friend or resource (perhaps someone on this forum) to assist you to not go too far on size-related issues, and even ask your doctor to advise you before you are about to take something beyond "normal acceptance." Normal acceptance is based on both overall averages or expectations as well as normal for just how much is reasonable to change about your original size, etc.