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John felt his sister's vines tighten around his ankles before being whisked up and flung upside down. John felt all of his blood rush to his head. Melanie noticed John's face turning red and she stuck her finger into his belly button.

"Ready?" Melanie asked John.

"Huh-OUCH!" John yelled as he felt her pierce into his belly button. Vines extended from Melanie's finger into John's body as they began to replace his veins and arteries. John looked down at his penis and observed his throbbing vein turn green. He felt the transformation continue into his arms and he watched as his veins also turned green.

"There," his sister said, "You won't feel fatigued any longer." Melanie removed her finger from John's belly button. John went to feel his navel and discovered that in it's place a purple flower had formed.

Melanie pulled John closer. He felt his face move closer to her vagina. It smelled sweet and John realised that it was leaking. John stuck his tongue out and began to lap at her vagina, immediately recognising the sweet substance as nectar. Melanie thrust forward with the nectar spreading all over John's face. John began sucking harder.

"You like that huh?" his sister said, "I'm about to make it 1000 times better."

John felt Melanie start to suck on his green throbbing cock. She went up and down on it, each time getting faster than the last. He felt it get longer as it penetrated her mouth.

Meanwhile, John kept licking at Melanie's vagina, continuing to suck on her sweet nectar, swallowing every drop in the process. John felt his tongue absorb the sugar and it lengthened to around 8 inches. He stuck it deeper and deeper, stimulating her like she had never felt before.

Melanie moaned and quivered from the extra tongue John had developed. Her vaginal folds extended far past their normal size. They turned white and it became apparent that they were transforming into petals. She felt her nectaries go into overdrive, as she could barely keep up John's demand of nectar.

John felt the center of his belly button flower expand with a purple bulb on the end of it. The bulb grew longer and longer until it became an eggplant. Melanie plucked the eggplant as her vines spread John's legs apart, revealing his asshole. She attached herself to the vegetable and it began to vibrate as she stuck it inside his plump anus.