Mistress Kiana loves to workout which means some of her slaves get to work out too. In this case Mistress Kiana is going to work the slave's stomach muscles so she stands on the slave making him tense his muscles to absorb her weight and tone himself in the process.

Achievement of a goal means a reward and as such Mistress Kiana has decided to let her slave kiss her ass cheeks, the more he can take the more he receives.