Austin Victoria from “Selling the OC” wasn’t always just a realtor slangin’ homes … he got a sweet gig with Hollister growing up, putting his face — and abs — in their stores.

We’re told Austin got his big break in 2003 when he landed a poster boy spot for the company — he was just a freshman at Glendora High when he picked up the job.

We’re told he flew out to FL to do the shoot … snappin’ pics at the home of famed photographer Bruce Weber — he’s shot numerous campaigns for Abercrombie, Ralph Lauren, and Calvin Klein.

Not only was the reality star featured in stores, but they printed him on shopping bags, too — could be some sweet memorabilia now!!!

Fans of the “Selling Sunset” spin-off know Jason Oppenheim, owner of Oppenheim Group in WeHo, expanded their company … opening up a 2nd office in Newport Beach, where Austin and 10 other realtors are gunning for real estate fame.