The 37-year-old former The Hills star called out Stephanie after she posted an Instagram Story congratulating his wife Heidi Montag on her “baby bump”.
After sharing a photo of Heidi on her Instagram Story, Stephanie captioned the photo, “Yay Heidi’s pregnant! I hope she has a little girl this time. Cute bump.”
She also posted a secondary picture of Spencer at the beach and captioned that one: “I wonder what my brother is having.”
However, Heidi isn’t pregnant.
Many fans of the couple were confused, and one even asked Heidi in the comments of her own Instagram if she was expecting.
“Stephanie just posted ur pregnant but I don’t see that u posted it,” a follower wrote. “Wtf I hope she’s not revealing it for u.”
Spencer was the one to reply, saying that Heidi isn’t pregnant and that Stephanie is body shaming them both.
“Heidi is not pregnant. Just being body shamed,” he replied.
Spencer and Heidi have yet to comment further and Stephanie has gone silent on social media.
Fans aren’t letting her off the hook for body shaming Heidi or Spencer.
“You need to think about what messages your current fat shaming stories are communicating,” one follower wrote to her on Instagram. “Not only is it unkind, but absolutely devastating to people who suffer from eating disorders or have difficulty with their body image. Stop. Do better.”
Another added, “Kind of showing the type of person you are with your body shaming story. Not cool.”
Spencer and Heidi are parents to Gunner, who turned three in October.
If you missed it, check out the first trailer for the return of The Hills.