Dec. 15 (UPI) -- Mom-to-be Kym Johnson gave fans a first glimpse of her baby bump in a new photo.
The 41-year-old professional dancer showed off her growing belly in a throwback picture Thursday after announcing she's expecting with husband Robert Herjavec.
"#tbt first baby bump pic at 18 weeks with Twins! I've popped quite a bit more now #throwbackthursday #preggers #twins #nomorewaistline," she captioned the snapshot.
"We waited so long that we decided to double up!" the couple told the magazine. "We are very grateful for the blessing of twins."
Johnson and Herjavec, who is already dad to three children with ex-wife Diane Plese, met during Season 20 of Dancing with the Stars. The pair married in Los Angeles in July 2016.
"It feels like we've known each other forever," Johnson gushed to People in July. "It's been almost three years since we met. He's just amazing. We're best friends, and it's just easy."
Johnson last competed in Season 24 of Dancing with the Stars. Herjavec, meanwhile, recently returned for Season 9 of Shark Tank, which premiered on ABC in October.