Magical Skunk Girl Riru Farting on Prisma Illya Request Sketch (Patreon)

A partial request sketch of a crossover between Prisma Illya and Magical Girl Riru, where Riru is turned into a skunk girl and traps Illya inside a magical girl bubble using her magical girl powers, and gasses her out using her... well you know. 

Originally the request included Yae and Rukoruko along with Riru coming back an hour later, but the drafts were a bit long so I decided to just do the first part and leave the rest for later if anyone is interested. Plus I was more interested in the magical skunk girl concept more than anything but yeah.