Sam Asghariis opening up about how girlfriendBritney Spearsmotivates him when it comes to his health.

During a recent appearance onThe Doctors, Asghari, 25, raved over the “Gimme More” singer, 37, while cooking her favorite meal — peachy steak, a recipe Spearsshowed offon her Instagram in August.

In addition to expressing his love for Spears in the kitchen, Asghari explained that working out together is also a big part of their relationship.

“I think couples should definitely work out together,” Asghari shared as a video of him and Spears working up a sweat played in the background.

Spears frequentlyshares clipsof the two in the gym, which shows them even skillfully using each other as props.

“I think it’s great,” Asghari said of exercising with Spears. “I think it’s fun. You can inspire each other.”

“She inspires me on a daily basis when she works out,” Asghari said on the show.

Asghari later revealed his reason for calling Spears a “lioness.”

“If you guys watch the Geography channel, I watch it all the time. The female lion inspires the male lion all the time,” he explained.

“The female lion, I give props to you guys,” Asghari said to the women in the audience. “I have three sisters, and so they inspired me.”

Britney Spears/Instagram

Sam Asghari Britney Spears

“Lioness is a strong, strong animal and yeah, that’s it,” he added.

Asghari’s appearance onThe Doctorscomes just after he revealed he plans to marry Spears in the future.

“This is something that every couple should do,” Asghari toldEntertainment Tonight. “That’s the whole point of a relationship — we are family.”

It’s been over two years since the pair were first romantically linked after meeting on theset of Spears’ “Slumber Party” music video.

Asghari also shared that he has an “absolutely amazing” relationship with her sonsSean Preston, 13, andJayden James, 12, with ex-husbandKevin Federline.

source: people.com