Reality TV star Kim Kardashian and her rapper husband Kanye West are reportedly spicing up their marriage by baring it all for their yoga classes.

They are taking private yoga classes to keep West calm and they're doing it nakes to spice up their love life, reports dailystar.co.uk.

"Kardashian knows West has an ongoing battle with keeping calm, so she suggested they do yoga together and maybe meditate to help clear their minds,` a source said.

"It was after their second yoga session with a private instructor at their home that Kardashian suggested to West that they strip off to do their homework. Not only is it making West calmer and more relaxed, but the yoga is also spicing up their love life,` the source added.