Stephanie, also known as PinkiesCupcake was a rapper who appeared in various series. She was Nathan Provost's girlfriend. 
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Stephanie Rose Smith

Stephanie began going out with Nathan in 2013. Her and Nathan answer questions together on a YouTube Series, called Unscripted. She occasionally appeared in rap battles.After Nathan and her went their separate ways in 2016 she will no longer appear in Rap Battles.