If this isn't the best way to advertise Real Housewives of Orange County star Tamra Barney's new CUT Fitness gym, we don't know what is!

This isn't an official ad for her gym, but Tamra has posted a selfie that her son Ryan Vieth took of himself flexing, and the dude is seriously ripped. Like, seriously.

"My son @fitlion_ryan getting CUT," Tamra captions the Instagram photo. "Great job, son! #dedication #fit #healthyliving."

Credit: Instagram

Holy crap! This is not what we picture when we think about getting to know Ryan in the earlier seasons of the show. When did Ryan become so bulky? And we're also loving the beard.

Granted, this isn't the first time we've learned that Ryan has been spending an ample amount of time at his mom and stepdad Eddie's gym. Tamra had posted another shirtless selfie that Ryan took of himself at the gym back in June, just before Tamra and Eddie's wedding.

Ryan — who is Tamra's eldest child from her first marriage to Darren Vieth — hasn't been on Real Housewives much lately. But it was great to see him on Tamra's OC Wedding last month and to know how happy he is for his mom's new marriage.  

Keep up the good work, Ryan! And, uh, feel free to keeping posting shirtless selfies — y'know, if you want to. It's up to you. Whatever.

Source: Instagram