SBPS follows the girls of Canterlot High after the events of Legend of Everfree, as they deal with graduation, maturation, and a parasite that just wants to cuddle their gray matter.
Sexy: Rainbow Dash finds herself unable to keep her hands off her own body. It isn't like she is just a little horny, suddenly she has moments when she just can't stop from masturbating. And, this is only the start.
Brain: Soft and squishy. Everyone has one and it is a perfect home for a...
Parasite: Picked up from the waters around Camp Everfree, this little guy (or gal, I am waiting for their official statement) loves snuggling... brains.
Story: Rainbow Dash comes home from Camp Everfree, only to find out she has slept through the weekend and is late for school!
Contains: Vividly described parasitization of a human brain (including its effects, and side effects on the host) (note: this bit is not being hidden. You are warned openly, I don't want to see complaints about this in the comments), BDSM, Masturbation, Transformation, Mind-Control, Body-Control, and more things that have not been fully realized yet.
Art: By Kinky Rainbow Dash (used with permission), cropped down from one of their older pieces.
Special shout to Nightgleam for doing some pre-reading/editing on this one. I hope I don't give you too much work.
See This Blog for licensing.