"Gah! Ah... Uhn..." Sasuke groaned, writhing in the paralyzing pain wracking his body. His entire body was on fire with pain; even his blood seemed to burn. As a strange black chakra emanated from him, his skin lifted off of his hands and arms, being replaced by green and black scales. He sank to his knees, screaming in pain as his curse mark transformed his body.
"GAAAAAAAAH!" he screamed in agony. The chakra intensified, pulsing around him in waves. Now his neck and torso were covered in scales, as well. His eyes burned as they turned black, the irises shining a light shade of amber. His top canines lengthened, and his now forked tongue could taste the deadly venom oozing from their tips. It was a sickening transformation.
He stood shakily, vomiting a stream of blood onto the floor at his feet. Glancing into the mirror, he could hardly believe the reptilian face staring back at him. So this was Orochimaru's true curse...
Slowly, he gripped a white scroll between his hands, spitting venom and blood together onto it.
"Ushi! Tatsu! Ne! U! Saru! Mi! Tatsu! Saru! Seal!" he cried, forming the hand signs perfectly. The scales began to vanish before his eyes, evaporating into smoke. His teeth stopped dripping venom and shortened, his tongue joining back together.
"Unh... Unh... Unh..." he panted, dropping to his knees as the last of the transformation was reversed. He slowly smiled, laughing with a high-pitched, hoarse tone. Tomorrow was June thirtieth. Of course... it was time... Time to see his old friend...