Kanye West is helping Kim Kardashian to get back in shape.

The 36-year-old rapper attended a gruelling exercise session at Barry's Bootcamp in Sherman Oaks, California at 6.30am on Friday (11.10.13), with his girlfriend, who gave birth to their daughter North West in June, and was overheard being very supportive.

A source told UsMagazine.com: ''It was super early and a gruelling workout. The couple was all smiles, showing affection toward each other and being very encouraging.''

The duo arrived a few minutes late in matching black outfits.

The source added: ''They were cute. (They were) smiling at each other in the mirror when they were running side by side on the treadmills.''

Kim, 32, is known to be a big fan of the classes but Kanye has only been spotted there twice in the past.

A source previously revealed that the reality TV feels confident about her post-pregnancy body but she is still a few pounds away from her pre-baby weight.

The insider recently said: ''She has a bit to go (to lose the baby weight) but feels confident. She's feeling really good about herself.

''Kanye makes her feel good about her body. He's always complimenting her. They just work together.''