As a foreign-exchange student in your last year at Canterlot University, you had ventured to Equestria from Earth to learn from the best in design during a practical internship: the Element of Generosity, Rarity herself. Under her tutelage, your penchant and eye for good fashion especially in stallions clothing (to take back to Earth for men's fashion) had been honed in the crucible of Rarity's unparalleled ability.

But one day, you might just find that such ability of hers worked to develop a little something else... building off the undeniable fact of how beautiful you find her. Such a keen eye for detail that you developed under her watch might be useful in moving things forward in other avenues. Perhaps, one particular avenue flanked by two pertinent points.

-Base cover art by scorpdk, sourced to derpibooru. Their twitter link is there, too.
-Shameless porn.
-Contains: Some 'mommy' play. Big Boobies (aka Yuge boobs). And titfucking. Lots and lots of titfucking. Like, that's all there is here. Seriously. It's me. What the hell else did you expect?