Fluttershy felt absolutely exhausted. A pregnant doe under her care had finally given birth in the wee hours of the morning, and while the cream pegasus had been ecstatic to help welcome the newborn fawn into the world, doing so had thrown her sleeping schedule completely out of whack.
She tried her hardest to keep paying attention to Twilight's explanation of the big magical discovery she'd just made, but ultimately, her grogginess won out. Her internal stay apparatus kicked in, its muscles locking Fluttershy's leg joints in place. Her eyelids fell, and she herself soon fell into a gentle — and upright — sleep.
…
…
…
…Eventually, however, Twilight took notice. "…Fluttershy? Fluttershy!"
The exasperated pronouncement of Fluttershy's name shook her from her slumber. "Oh, s-sorry!" she apologized, a sheepish grin promptly forming on her muzzle. "Was I, um… 'hammocking' again?"
Twilight gave her friend a blank look. "Yes. Yes you were."