By Breaking Celebrity News Staff

Giddy up cowgirl!

Adrianne Curry showed off her skills on the mechanical bull at Saddle Ranch in Hollywood on Thursday night.

The former America’s Next Top Model was getting raunchy at her pal Sarah Carroll’s bachelorette party in celebration of Sarah's wedding to co-star Spencer Falls on Sparah.com.

Before Saddle Ranch, the group hit up Hustler  — where divorcée Adrianne (who split from The Brady Bunch’s Christopher Knight after five years of marriage in May) stocked up on sexy lingerie and other sex supplies.

“Adrianne was