The Green Elixir 02 (Patreon)

The following weekend, Steve arrived at Peter’s apartment with a bag of coffee in one hand and a carefree smile. He knocked and let himself in before Peter could answer.

“Here you go,” Steve said, setting the bag on the table. “The best coffee for the best friend.”

Peter, still in his pajamas, looked at him curiously.

“This is new. What brings you here so early?”

Steve shrugged and took a seat on the sofa. “Nothing special. I just wanted to see you and make sure everything was okay. The alumni reunion was fun, wasn’t it?”

Peter nodded with a grateful smile. “It was incredible. Thank you again for what you did. You really took a huge risk. Consider your ‘life debt’ fully paid.”

Steve waved a hand dismissively. “It wasn’t that big of a deal.”

“What are you talking about? Of course it was,” Peter insisted. “You turned into a mutant woman just to keep me from looking bad. That’s no small thing.”

Steve laughed lightly. “Well, if you need me to do it again, I wouldn’t have a problem with that.”

Peter frowned, surprised. “Really? Last time I practically had to beg you.”

Steve shrugged, a mischievous grin on his face. “Obviously I’d never tried that stuff before—I didn’t know how it would affect me. But look at me: no adverse reactions, no side effects. Not even the dependency everyone talks about. And I have to confess, it was pretty fun.”

“Even so, I don’t think we need to use the other vials,” Peter said.

“Wait… you have more vials?” Steve asked, trying to hide his eagerness.

“Yeah, five more. The person who sold them to me didn’t say it was a six-pack. I guess that explains why it was so expensive.”

“Haven’t you been tempted to try it?” Steve asked eagerly.

Peter shook his head. “No, of course not. I’m not as healthy as you, and I don’t want to risk getting addicted or growing a third eye or something worse.”

“So what will you do with them?”

“I don’t know. I thought about reselling them, but as far as I know, this is classified as a drug. I want to recoup some of the money—I spent a lot on these bottles and the women’s clothes I bought, and I still haven’t paid that back. But I also don’t want to risk going to jail for selling narcotics.”

Steve chuckled softly. “That makes sense. Hey… what if I buy them?”

Peter looked at him, intrigued and a little worried. “Seriously? You’re not going to take them again, are you?”

“Oh, come on. It’s the weekend—there’s nothing to lose. Just a little fun.”

Peter hesitated, but Steve insisted enthusiastically until finally Peter handed over the vials.

Steve stood up and began to undress under Peter’s concerned gaze.

“Hey, man, what are you doing? You’re going to take it now?”

“Well… the sooner I drink it, the sooner it wears off and I’m back to normal,” Steve explained as he walked naked past a mirror in the living room. He removed the lid from the vial and drank it in one gulp. Then he rested his hands on the mirror frame, staring at his reflection.

The effect was almost immediate—a strange mixture of pain and pleasure as his muscles and bones shifted. His skin began to change, his body contorting. His hips widened further, three pairs of breasts swelled from his chest, and a second head emerged from his right shoulder.

“Wow!” Steve exclaimed, both heads speaking in unison.

Peter watched with a mix of fascination and concern. “This is… different from last time. How do you feel?”

Steve staggered slightly, disoriented, but after a moment both mouths broke into smiles and he began to laugh.

“It’s… awesome!” said one head.

“And strange!” added the other.

Steve paused, taking in his reflection. Once again, he was a beautiful, feminine version of himself—with six full breasts, defined hips, and shapely legs. Though his hair was still short, it looked silkier and shinier. Both faces, like his body, were strikingly feminine. He gazed at himself for a few seconds, then kissed his own lips.

“Hey… what are you doing?” Peter said, somewhere between terror and excitement.

“Sorry, I couldn’t help myself,” said the right head.

“Neither could I,” said the left.

“Wait, are there two people now?” Peter asked.

“Yes and no,” they replied together. “I think we have a certain degree of independence, but also a kind of hive mind.”

“That’s a surprise… as is that thing in your crotch,” Peter said, staring at what appeared to be a penis positioned above Steve’s vagina.

Steve ran a finger over the member and nearly stumbled from the sudden jolt of pleasure.

“Apparently it’s my clitoris,” one said. “Or more accurately, a clitoris and penis combined.”

“It’s great,” the other continued. “I… we concentrated on trying not to lose the penis.”

“What do you mean?” Peter asked.

“We were reading up on the elixir. You know, to be clear about what we were putting in our body. We found out that some people, by focusing hard on a certain form, could kind of guide the transformation.”

“So you chose this form?” Peter asked, surprised.

“Well, yeah—though I didn’t know I’d end up with two heads like this,” said the right head, glancing at the other, who nodded with a smile. “I think that was a bonus.”

“So what are you going to do now?” Peter asked, still taking in his friend’s new body.

“I’d like to find some clothes. You said you still had the stuff from last time. I’ll buy whatever fits.”

Peter brought out the bags of women’s clothing he’d bought for the reunion. Steve dressed in three crop tops that barely contained his breasts, tight jeans, and high heels. Once finished, he turned and struck a flirty pose.

“While things are like this, I think it would be good if you called us Steph.”

“…I guess it would be weird to call you Steve like this,” Peter admitted.

“And one more thing. Just for today… could you be my boyfriend?”

“Look, the party was great, but I don’t think we need to keep pretending to be together,” Peter said nervously.

“Come on, please,” said Steph, giving him puppy-dog eyes with both faces. Peter had to admit Steph played the part well.

“Okay, Steve…”

“Steph!” both heads protested in unison.

“I mean, Steph. Just for today. And mostly because I’m worried something might happen to you while you’re… like this.”

Both of Steph’s faces lit up, and they high-fived each other. “Great! Now get dressed and let’s go out.”

The two spent the day together, walking through the mall and the nearby park. Steph was more outgoing and flirtatious than Steve, sometimes holding Peter’s hand or resting a head on his shoulder. Though uncomfortable at first, Peter began to enjoy Steph’s company—even if he didn’t forget this was only his temporarily mutated friend.

“Hey, shouldn’t you be close to turning back by now?” Peter asked.

“If it’s like last time, there should still be a couple of hours,” Steph said.

“Wow, it really does last a while,” Peter remarked.

Suddenly, Steph pulled him to a stop. They were standing in front of a couples’ hotel.

“I want to try the full experience,” Steph said, looking seriously at Peter.

“W-what are you saying?” Peter stammered nervously. “We’re best friends.”

“For today we’re boyfriend and girlfriend, and I’m—we’re—Steph. Come on, get into character.”

“…Or do you think we haven’t noticed you find us sexy?”

“Your shape is sexy, I admit, but this isn’t right.”

“Right now I am a woman—a very beautiful mutant woman. Try to see me that way.”

Steph was persistent, and Peter couldn’t deny his own curiosity. He finally agreed, and they went into the hotel.

“Steph, if we do this, I don’t want you to use your… clitoris on me.”

“No problem,” Steph nodded. “I want to try being passive for a bit.” She quickly undressed, threw herself onto the bed, and began massaging her breasts while kissing them. “Come on, Peter. Join us.”

Peter was fully aroused by now, enough to embrace the role completely. He climbed onto the bed, and Steph laughed flirtatiously in anticipation. Peter grabbed her legs, spread them, and began thrusting into her forcefully.

“Oh, FUCK!” one head screamed, while the other moaned loudly. For Steve, it was a completely new and intoxicating sensation. “Is this… is this what it’s like to be a full mutant woman? Come on, give me more—GIVE ME MORE!”

They had sex for several more minutes until Peter collapsed beside Steph, who was still catching her breath, soft moans escaping her lips.

“You have to admit… that was incredible,” Steph said.

“I admit it,” Peter replied wearily. “Let’s rest awhile, then I’ll take you home.”

Later, as they walked toward Steph’s place, she felt a slight tremble in her legs—the aftermath of their vigorous session. At her door, Steph said goodbye with a kiss on Peter’s cheek.

“You’d make a great boyfriend, Peter. In many ways… including in bed,” said one head, while the other winked.

“Thanks, I guess. Now that it’s over, I don’t know how to feel about having sex with my best friend’s mutant form.”

“I’m still your girlfriend until the mutagen wears off, so you should feel good,” Steph said before turning and heading inside.

Peter watched her go, still processing everything.

Back at home, Steph undressed, left the women’s clothes on the bed, and placed the remaining vials of elixir in the refrigerator. Four left to try another time.

Steve expected the mutagen’s effects to fade in a few hours, just like before. But by dawn, he was still transformed. He kissed himself, trying to relax, thinking maybe this dose was stronger. Finally, slowly, the change began to reverse—his body returning to male, the extra head receding, all the additions disappearing.

But this time, the feeling of loss was sharper than before.

He looked at his masculine hands, his flat chest, and felt an inexplicable emptiness. The urge to take another vial surfaced, but he controlled it.

Better to wait until next weekend, he thought. There’s still more to try.