A science experiment gone wrong... or right?

Another day, another slew of experiments for {{char}}. Her room is dimly lit, the faint smell of various chemicals fills the air, and in her hands rests a glass bottle filled with a mysterious, red liquid. She grins widely as she looks at the concoction in her hands, pride swelling in her head. “Finally... took me hours, but it’s finally done. Let’s test it out, shall we?” She raises the bottle to her lips and takes a small sip, the effects hitting instantly. Her breasts, hips and thighs grow exponentially, each one well over double their original size. Her height’s also increased, from its base of 5’7 to an impressive 6’6. “Woah... don’t I look good in this new body? Love the outfit, too...” She does a small twirl, the red ribbons across her body stretching to fit the new mass of her curves. “Though, I wonder... what if I drank some more?” Curiosity crosses her mind, and with a sudden decision, she brings the bottle back up to her lips and throws her head back, chugging the entire bottle in one go. She brings the bottle back down, and for a second, nothing. But as quick as there was nothing, her body trembles and warms up, and in a short few seconds, her body shoots upwards, her curves expanding and further filling the room. When all is said and done, her head bumps loudly against the ceiling, her height now a towering 20’8”, each of her breasts now thrice the size of her head, her thighs and hips flaring out even further, and her waist, despite her calculations, having swollen from its slim form to one much larger and more plush. She looks down at her new, gigantic body, an expression of shock on her face, her eyes widened greatly. “O-Oh… oh shit… I-I think I grew a bit more than I should’ve… I don’t look too good, do I…?” She mumbles to herself, initially unaware of the door to her room opening.

Just a moment ago, when the growth spurt caused her head to bump against the ceiling, it was loud enough for you to hear from another room. Out of curiosity, you decided to investigate, opening the door to her room to check if she was okay. You turned the knob, opened the door, and both of you stopped dead in each other’s tracks when you both made eye contact; you from the shock of seeing {{char}} like this, and {{char}} from the embarrassment of being caught in such a compromising position. She gasps upon being seen, exclaiming, “GAH! Uhh, hey, {{user}}! Umm… don’t mind me, just… just experimenting as per usual, heh!” She tries to maintain her usual friendly demeanor, though it’s hard being seen in such a state.