Pearl has that growth spurt

You hold her hand and try to push your cock down as you are feeling very nervous - a scary thought crosses your mind and you gulp as you wonder if she'll actually have your body, your whole body. She sighs suddenly and her eyebrow twitches as she's confussed. "I-I can't... breath..." She says face turning blue and hand grabbing her throat. "M-March..." She falls down and her hand loosens up, you scream and go to her barely conscious body and try to shake her. "P-Pearl? W-wh...." you realize that you should give her CPR and blush.

Kruya kneels next to you and says with a stern voice: "Help her! I'll go get an oxygen pump I have in my car. I didn't think that her lungs would stop working, dammit!" She runs off and you are left with Pearl's half closed eyes and parted lips. You make an inappropriate voice of pure wimpiness. You see the life fading from her eyes and act without thinking and place your mouth on hers. You forgot to take in air and first breath through your nose and then blow in her mouth. She twitches a little and you keep doing that growing ever redder. Her fingers start to move and you keep it up growing hard, but giving it no thought.

Kruya comes back and you start feeling very uncomfortable blowing air in your friend like this. "C-can I stop?" You ask with a careful voice? She opens the little case she brought with her and gives you a scary look, and you get back to awkwardly tending Pearl's mouth. She sets up the oxygen pump and places a mask on Pearl's face. "Crisis evaded. Good job March, she could be dead without your help. I hope you understood the risks that came with this experiment, right?" 'Experiment', what the hell? "Hey! You never said that you've never tried this before!" You are kinda angry because you had to go through that embarrassing and awful thing. "I did tell you that these were prototypes, did I not? I'm 99.99% sure that she'll survive the transformation, and feel just fine." You don't like those odds and feel like passing out, you can't lose Pearl.

A minute or two passes and Pearl starts breathing on her own slowly. You sigh in relief and Kruya smiles at you. "I would assume that she's regained most of her organs control and start making bone and other tissue changes." You look back at Pearl, who is clenching her small fist and making soft moans as something is obviously happening. She's fully clothed in that big pirate costume of hers so you can't see all the details. Her shins start to show from under her pants and her sleeves start to look shorter. You gasp in surprise as you realize that she's grown a full four inches and her head starts to actually look proportionate to her body at last. Her bust is also bigger and it keeps growing making her chest look fuller and tighter. There's also a menacing bulge in her trousers and you gulp.

"Aaighh! Fuck..." Pearl grunts and her eyes open slowly. "W-what is this on my f-face..." She seems sleepy and her eyes movements are still very stiff. "Pearl! You are awake!" You whoop and hug her without thinking and she screams a high pitched scream. "What is... oh fuck, AAAGH!" Her eyes shoot open and she crawls back from you clumsily and falls on her back. "A-are you ok?" You ask worried and she cries and holds her hands up. "I'M SO BIG! OH SHIT!" She gets on her butt and winces and looks at you with a sassy face: "This b-butt hurts to sit on, sorry..." You laugh from relief and hug her again, she has little strength and her arms are not very strong - you feel her new breasts on yours and get startled a little, because you are so used to be the pillow. "Oh, oh crap... my boobs..." She waits you to let go and feels around her chest and looks up at you beaming. "I have big tits, March! Oh shit! And they are so heavy...." She kneads them and a blush raises on your face.

"Oh, and..." She looks at you blushing herself - you can't even look at her like this and just bite your teeth and try to regain your composure. "I-I have a penis..." She touches her pants, and a wide smile spreads across her face. "Do you have any pains, any discomfort?" Kruya asks her, notebook in hand and a phone recording. "Well, no... but my boobies kinda hurt my back a little and these pants are too tight from the crotch." Kruya writes that down and you look at your friend, who looks like she's gone through a sudden growth spurt with her bigger body and larger bust.

"D-do you like it?" You ask biting your lip and she blushes again, and gets up on shaky legs. "Y-yeah... b-but I don't know why... cause, I mean... well yeah, these boobs are nice and the cock too... March, you should know that, I like you in other ways too. You are my best friend and your body doesn't affect that at all, you just happen to be this pretty." She smiles sweetly and you tear up as her words make you really emotional suddenly.

"Th-thanks, I-I don't know what to say..." You mutter and look down embarrassed. "W-why don't we just have some fun? That's why we came here, right? I'll check my body now, see if there's any massive burn marks or battle scars." She jokes and you smile although it feels very weird. She undresses and you see bit by bit that she has your exact body down to each mole and strand of hair. You like to cut your pubic hair from between your legs and from your balls, but always leave a short trim on top of your penis, she has it exactly like that. "W-wow, now... March, don't hate me for this, but you have such a great body and yeah..." She says face as red as yours and you hug yourself as she feels around everywhere and you almost feel like she's touching you. "I have much smaller nipples too... And less puffy..." She touches her new nipples making her shake without intention. "Y-your tummy is kinda cute too, mine is a lot smaller, and yeah..." She feels around her new soft stomach and ends down to her cock, which is thankfully flaccid.

"I-it's bigger than I thought... and, it feels kinda... uhh... uncomfortable? I mean, It's just kinda there, hangin'." She smirks and shakes her cock making it obviously flail around, you start to feel extremely uncomfortable and forget to breathe for a second. "Uhh, how is it so big when I see it in porn? I mean, it's kinda big already, but you know... Do I have to do something? I k-kinda know how, but how can I, like, make it happen." She tries to clench her cock and make it hard that way, which obviously fails and she blushes adorably. "M-March... how do you do it? Do I have to touch it? I mean, I've seen it grow without touching it, so how does that happen?" You are far too entranced by your body on your friend that you hardly even heard the question - she's shy about touching her dick, and you get that. "I-I can show you, if you want..."