"You're the hummingbird now," Barry murmurs, feeling a flare of jealousy. For years, his speed has set him apart, and now it's gone. It will come back, he thinks, but just now it's hard to let it go. But, the scientist within him reminds him, this is a rare opportunity to see life through Derek's eyes, more so than even that polyjuice potion had provided.

Barry opens his eyes, appreciating just how sharp they are, how much his ears take in. There are birds in the trees outside, a few hardy insects in the cold grass, rabbits in the bushes. He can hear it all. Curious, Barry wraps his hands carefully around Derek's waist and lifts.

"Oh," he exhales in surprise as Derek rises three feet in the air.