Miss Muscle Barbie, aka Barbie or Gabby Lyons is an Australian porn star. Gabby has posed for 82 covers, 12 photosets, and 70 videos, for Fitness Model Pornstar, Luke Riggs, Luke's POV, Milf VR, and Brazzers among others. Including her own site, xxgabbyfit. As of March 2026, Gabby has amassed 183,000 followers on Instagram.