Twilight, Sci-Twi, has a secret she's kept since before moving to Canterlot High. One, that's gotten harder to keep when the puppy involved started speaking. She, for pure scientific purposes, seen if a dog will indeed lick anything covered in peanut butter. Her results, proved more than satisfactory, but left her with a craving her fingers can't fill after giving up these repeated tests. But maybe her new and improved number one assistant can.

After a long absence, I've decided to return, and hit off some with less covered clop subjects. Inspired by a forum post, I made this fic first. It started off as a 1000 word challenge story, but yeah I failed that idea. And that's not even including the two followup chapters.

Also, yeah. Since this is a human Twi and dog Spike story, bestiality is expected.
*Note, the Spike in question is post EQG3 speaking Spike.