Jen Bunney and Heidi Montag hang out on Oct. 23, 2013. Credit: Courtesy of Jennifer Bunney

More than three years since their "lives" stopped airing on MTV's The Hills, Heidi Montag and Jen Bunney are still pals. And on Oct. 23, Bunney posted the picture to prove it. 

"Having fun :) @heidipratt," Bunney captioned the picture with her blond gal pal. 

Montag, who famously underwent 10 plastic surgery procedures in a single day, looks happier and healthier than we've seen her in years. Wearing little to no makeup, Montag looks young and natural in the shot. The star has since admitted she took her surgeries too far. 

Bunney appeared in several episodes of Laguna Beach as Lauren Conrad's close friend before transitioning to a supporting, occasional role on The Hills. She was friends with both Conrad and Montag, both 27, until the introduction of Montag's boyfriend Spencer Pratt

Pratt's presence caused a serious rift between Conrad and Montag on the show, and Bunney was seemingly thrown into the middle of it during Season 2 of The Hills, when the show aired scenes from her 21st birthday. 

Conrad blasted Bunney for "hooking up" with her ex Brody Jenner, and after a series of awkward apologies, the two ended their friendship. But Montag and Bunney were able to remain friends both on the show and long after the cameras stopped rolling in 2010.

Montag and Pratt eloped on Season 4 of the MTV reality series, and had an elaborate ceremony that Conrad surprisingly attended at the mid-season finale of Season 5. They are still together and currently working on their latest attention-grabbing project, SpeidiShow -- a fake reality show meant to offer fans an interactive platform into their lives. 

Bunney is current pursuing her Masters in public health, epidemiology, and global healthcare policy at the University of California, Berkeley. She got engaged to longtime boyfriend Taylor Dunphy in June 2013.