The Nature Lesson

The Potions Master had to take his class on a field trip into the forest for a bit of hands-on learning. After a long hike into a remote area, he realized that somehow he and Hermione had became separated from the rest of the class. Quite a surprise. So there was nothing else to do but lift the tired girl onto the branch of a tree, and provide individual instruction.

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Naturally Severus Snape and Hermione Granger are (c) JKRowling
AND they are both adults!