First, those wonderful breasts were all her. No surgeon ever touched her. She did grow some what larger as she got older, some women do that...hormones.
Joyce Mandel aka posing name of Alexis Love. RIP She passed away last October.
The gif is a short of a video she did...she did several...years ago..more than a decade for Score magazine and some others. She was living in LA. And she also appeared in some TV shows and movies. Mostly as back ground extra. She also posed for decades under various names. Her bio in on boopedia.com , and LanasBigBoobs.com and imdb.com
And you can see some of her short videos for free on Bigtittytube.com Search Alexis Love.
Again, RIP Joyce Mandel