'Pretty Wild' Star Tess Taylor Enters Rehab for Heroin

Tess Taylor -- model, former reality star, and sister to Burglar Buncher Alexis Neiers -- has entered rehab for a heroin addiction ... TMZ has learned.

Sources close to Tess tell us, she entered the Pasadena Recovery Center last Sunday -- after her felony drug possession arrest last month. We're told the arrest was the primary catalyst behind her seeking treatment again.

Tess entered rehab for an opiate addiction one year ago -- but quit after 30 days.

Sources tell us, her family had nearly given up on Tess after she pulled out of rehab last year -- but when the reality star hit rock bottom after her most recent arrest ... they helped usher her back into treatment.

As for how Tess plans to pay the massive medical bills -- we're told several family friends are pitching in ... and she's expecting a $20,000 check from Sofia Coppola within the month, which should alleviate some financial pressure.

The check is for Tess' role as a consultant on the Burglar Bunch film Sofia is currently developing.