Botox Mom -- The 600-Pound Porn Star Connection

Mom Botox and the British journalist who first broke the story has a huge connection ... 600-pound porn star named Goddess Patty

Pleasantly plump adult actress - who specializes in "Crash, eating, food, and bondage kinky - first met a few years see Einstein Alley, Alley ago worked on a story involving scene of porn stars who are Rubenesque ... art, not the sandwich.

Sources close to the goddess Patty tell us ... she met last year in Los Angeles and Alley told the reporter her roommate's cousin, Sheena Upton, a daughter injection with Botox to treat eczema ... in the hope the child would eventually enter the world of pageantry.

Alley broke the story shortly after the meeting ... but as TMZ first report, Sheena now claims that it was all BS and it was paid "actor" following a script.

But if the story of Patty throws - and what she knew about Botox injections before Alley was on the scene - it could blow big, FAT holes in the history of Sheena's.