AYEEE! WOULD YOU SMASH THIS 600 POUND PORN STAR?

the pleasantly plump adult actress -- who specializes in "squashing, eating, feeding, and kinky bondage" -- first met reporter Alley Einstein several years ago when Alley was working on a story involving porn stars who are Rubenesque ... the art, not the sandwich.

Sources close to Goddess Patty tell us ... she met up with Alley last year in L.A. and told the reporter her roommate's cousin, Sheena Upton, was injecting her young daughter with Botox to treat eczema ... in hopes the kid would eventually enter the world of pageantry.

Alley broke the story soon after the meeting ... but as TMZ first reported, Sheena now claims the whole thing was BS and she was a paid "actor" following a script.

But if Patty's story holds up -- and she knew about Botox injections before Alley entered the picture -- it could blow BIG, FAT holes in Sheena's story

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