Rarity has done it. She's made herself famous thanks to a dress request from the princesses and now has more bits then she can hold. With the extra bits, her minds starts to think that she deserves more, and starts making more trips to the spa to enjoy herself.
The spa itself recently took a new worker under it's wing in order for him to feel like a proper member in society. Coming from a society where everyone hoards gems and lives under ground, the diamond dog wanted to prove that not all of the underground inhabitants were brainless, greedy dogs. Over time he gained the interest in Rarity, thanks to his skills at massaging, and always provides the mare the best satisfaction he can give.

Edited by SolidFire and mikemeiers