NARUTO Spin-Off: Rock Lee & His Ninja Pals S01 E23 Naruto is Lee, Lee is Naruto! / I Dream of Taking the Nine-Tails for a Walk!

Ino catches Naruto and Lee trying to peep on Sakura while she's in the bath, but when she misfires with her Mind-Body Switch jutsu, Lee and Naruto end up swapping bodies!