Derek Hough engaged to Hayley Erbert

June 3 (UPI) -- Professional dancers Derek Hough and Hayley Erbert are engaged to be married.

"It's only the beginning...the beginning of forever," Hough wrote on Instagram Thursday.

The message captioned a photo showing Hough, 37, standing and holding Erbert, 27, in his arms with their faces pressed together in a room filled with flowers.

Their names were at the top of the post with the status of "engaged."

People.com said Hough worked with Chau Lui, co-owner of Paris Jewellers, to design Erbert's "extraordinary and rare" custom oval diamond and platinum engagement ring.

Hough and Erbert have been a couple since meeting on Dancing with the Stars in 2015.