Like Amena from the now-nonexistent ikandiweb that I just posted in the GF 'Pop' thread, this is another model who, with the passage of time, is getting harder and harder to find online. Presumably, she was known as Mimamasita (or maybe just Mamasita) or maybe she just came from another extinct website by that name.
Looking 30something, this curly, rumpy piece of latina goodness shows up in just a single small set of pix that I know of... a single one actually qualifying as hardcore by dint of the penis in her mouth: so small a chipmunk couldn't make a mouthful of it. Yes, amateurs come and go a million times a year and perhaps that's all she was: producing this single set. It's just a bit of a shame, that's all. A woman this pretty, this plush, this alluring is deserving of more attention IMO. 
Take a trip in the Wayback Machine. In 1999, Mi Mamasita is an independent website claiming "over 1,450 images." The archive is slow; some images work, and many are broken or don't load correctly. On the preview page (which doesn't seem to change through the updates), she lists her bra size as a 36D.
The last update was apparently in April of 2000, when the front page was updated to say:
Our site features:
* Over 2,600 images of the hottest latina amateur on the net in 57 hardcore galleries.
* MPEG video clips.
* 6 Live video feeds that are always up!
* Busty women galleries.
* Over 9,700 images of 89 amateurs in our amateur girl galleries with 1,000 more photos of 10 new amateurs added each and every month.
* Full service online store.
* Mamasita video tape coming soon!
Last Update: 4/20/2000
* New Mamasita Anal HARDCORE gallery added!!!!!
* More Galleries coming this week!!!!!
* 2 New Amateur Girls in our Amateur Girls Galleries added on Monday!!!!!
The site was gone in 2001.
So clearly there was more than just one measly set, but who knows whose hard drive may still have it.