Yes, Reluctantly

You knew she was up to something, so you asked, "Why exactly do wanna be the hottest woman in the world?"

"What girl wouldn't?" She said, "To get ALL of the cock and ALL of the pussy. Duh."

"Alright, but after you help me get through the yard, Im changing you back," you said.

"Uuuugh, fine," she pouted just like a petulant teenager.

"Ok Natasha," you said, "Turn into the most desirable woman alive."

Natasha howled with arousal, and absolute pleasure as she was transformed into those things. She kept her new heterochromic eyes, but her hair became bicolored, a mix of her natural platinum blonde and a red that was almost pink. Her lips turned a deep cherry red and changed shape in a way that could only be described as the sexiest lips ever. You would never want to kiss or get a blowjob from any other girl ever again

Her already titanic tits ballooned to quadruple the size while keeping a natural shape. Of course even her old h-cups were still bound to gravity, but these were so massive they had their own gravity well. That is to say they didn't sag in the slightest. Her nipples also doubled in length and the sweetest, purest white milk drops formed at the tips.

Her skin and muscle tone took on the appearance of carved marble or porcelain. Her belly was pretty flat before, but now her entire torso was positively shredded like a warrior queen, to say nothing of her long sexy legs.

While all that was going on, she grew two feet taller until she towered over you. Finally she spoke in a voice that oozed sexuality and made you want to jump into her mouth and make sweet sweet love to her tongue.

"Holy fuck! That felt incredible!" She said as she admired herself in the mirror. When she made eye contact with her reflection, she orgasmed harder than any woman ever had. She grabbed her three inch long nipple and twisted it until her areolq turned white and she shoved all four of her fingers up her pussy. You could smell her cunt from across the room, undertones of lavender, roses, and citrus but the main scent was pure undiluted femininity.

Watching her cum like a supernova had the same effect on you. You completely lost control of your own body now. Your knees weakened, you arched your back, and threw back your head as you shot more cum from your painfully hard cock than you had in your entire life. For three minutes you shot thick waves of molten hot cum all over Natasha's divine body, the only worthy tribute to the ultimate woman.

"That's right, pet," she purred through her bow constant state of orgasmic bliss, "All your seed belongs to me now!"

Your last thought before your losing your free will was realizing this was a huge mistake. Then, just happy, absent minded, blissful pleasure just from being in her presence.