Its amazing what can be done with a padded bra nowadays.
Its like some comedian once said, you never know what you're getting when you take someone home from the bar. There could be a padded bra, a formfitting girdle or pantyhose, a wig, colored contacts, etc. etc. Buyers beware!
And even if there's no padding involved, you still don't know whether the boobs are real or fake. Plastic surgeons can do some good work, altho I've seen some bad work as well. Just a hint for you implant-naive, fake boobies stand straight up when the lady is lying flat. "Normal" boobs don't fight gravity and will tend to make their way laterally when a woman's lying flat.
This is all very important stuff to know!
And Julia Roberts had the mother of all padded bras to make her into Erin Brockovich.