A would-be love potion goes awry.

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This is a story of casual, unprotected sex, and is a work of fiction. In real life, use a condom, damnit! Unwanted babies, HIV and all sorts of lesser sexual diseases await the idiot who “dips his wick” or “rides the rod” without protection.

16-year-old Darryl stepped out of the strange store and heard the bell above the door ring as it closed behind him. He strode away quickly, his hands in his jeans pockets, feeling the small glass bottle that he had shoplifted.

He had found it on a shelf in the weird knick-knack shop with a small piece of worn paper attached with twine that said in a spidery script, “Mix one drop with one drop of your essence. Whoever consumes that will desire y...” The writing had become illegible at that point ... the paper was very old, and looked to have been chewed on by something. Still, what he could read was enough; a love potion! He couldn’t afford the $250 price tag, so he had palmed it and skedaddled. Most likely it wouldn’t work, but with his five-finger discount, he wouldn’t have lost anything by trying.

Finding the bottle had been good timing, as his sister’s gorgeous friend Keira was sleeping over that weekend. He’d had a crush on her since forever, but the 17-year-old blonde barely acknowledged him. Well, with this stuff, maybe she’d do a lot more than that!

Back in his room, he considered the instructions. “Essence”? Just thinking about Keira’s naked hourglass figure riding his cock made it rise to the occasion. Within a few minutes he was spewing his teenage cum into a tissue, which he then tossed into his trash bin.

After zipping back up, he had an idea. Essence! Duh! He rushed to the kitchen, mixed up a glass of lemonade, and then brought it and the spoon back to his room. He used the spoon to scrape what he figured was a drop of his cum out of the tissue, and then very carefully unstoppered the bottle. He couldn’t tell what was inside by sniffing, so he gingerly tipped the bottle over the spoon’s bowl. It came out slowly, like syrup, but it was clear. It was easy to obtain just a single drop, which he then mixed with the drop of his semen using a pencil tip. Once the two solutions became a mixture, he used the spoon to stir the lemonade some more. When he took the spoon out it was clean, and the lemonade didn’t look any different.

Smiling, he went to his sister’s room and knocked. “Yeah?” That was his sister Meredith’s voice. Darryl opened the door and went in to find the two girls already in their bed clothes, which consisted of a cropped t-shirt and panties which showed off their midriffs and long legs. The girls were playing Mario Kart on his sister’s Nintendo Switch, and couldn’t take their eyes off of the screen for fear of losing the race.

Meredith gave him the briefest of glances. “I said ‘Yeah?’, not ‘Come in.’ What do you want?”

“I brought a lemonade for Keira,” Darryl offered, holding it out to her.

Keira continued looking at the screen. “Oh, thanks, Darryl, just put it there, okay?” She gestured with her head to the shelf behind them. He put it there and waited.

“Nothing for your loving sister, bro?” Meredith asked, concentrating on a particularly tough curve.

He realized that he had goofed by only bringing one drink. “Oh, uh, right! I’ll grab you one too.” He rushed out of the room.

When Darryl returned with the second, untainted lemonade, he noticed that the first glass was now half finished. He handed the new one to his sister. “Thanks, bro!” she said, and then noticed how lecherously he was looking at her friend Keira. “Now get out.”

Darryl purposely didn’t whack off that night, even though his cock had recovered from the earlier masturbatory session by the thought of Keira stealing into his room to take his hard cock into his mouth while he slept. He could practically feel her hot tongue licking up his shaft before engulfing it entirely, sucking hard and moaning in pleasure...

Wait, he thought as he woke up, this was actually happening! In the gloom of night he could see the shape of Keira’s head under his sheets bobbing up and down on his hard-on. It felt incredible!

Oh my God, it fucking worked! he realized, laying his head back and savoring the feeling of his first blowjob.

“Mm ... mm!” he could hear her moan under the covers as she sucked harder and moved her mouth faster up and down on his cock. She was really good at this, and he was going to cum soon.

He stiffened his stomach muscles, pushing his pelvis up as he felt it start. “Oh ... ohh ... gonna ... uuaaahhh!!” He felt his dick expand as his cum rushed up the shaft, blasting out into Keira’s mouth as she moaned and sucked. Darryl marveled at how much better it felt to cum inside a woman’s warm mouth than into a tissue.

She gulped down all of his cum and then fell to the side of his legs, jerking and moaning. Was she ... crying?

He lifted up the sheet and reached out to stroke her back. “Hey, it’s okay. That felt really good, Ke--”

The face of his dark-haired sister Meredith looked back at him, her eyes full of lust as she finished her own orgasm.

Last night:

“Nothing for your loving sister, bro?” Meredith asked, concentrating on a particularly tough curve.

He realized that he had goofed by only bringing one drink. “Oh, uh, right! I’ll grab you one too.” He rushed out of the room.

While he was gone, the young women finished the race, Meredith having beat Keira by a mere second. “Phew!” Meredith huffed, and grabbed the lemonade her brother had brought in.

She had downed half of it before Keira noticed. “Hey, that was for me!”

Meredith looked at the glass. “Oh, sorry; I was parched. He’s bringing another one.” She plopped the glass back where her brother had left it.

When Darryl returned with the second, untainted lemonade he noticed that the first glass was now half finished. He handed the new one to his sister. “Thanks, bro!” she said, and then noticed how lecherously he was looking at her friend Keira. “Now get out.”

As he closed the door behind him, Meredith passed the new lemonade to Keira, who sipped at it. Meredith then gulped down the rest of the tainted one.

“Ke--Meh ... Mer?” Darryl stuttered. His sister had just sucked him off!

She stopped shaking. “Hey, bro ... hope you don’t mind, but I really needed to do that. Can you ... go again?” She started to stroke his softening cock.

He sat up, pulling his member from her grasp. “Shit! No ... I ... no!”

She looked disappointed. “One-timer, huh?” She slipped from under the bed covers and stood up. “Okay, I’ll catch you in the morning, then.”

As she started to leave, Darryl spoke up, “No! This can’t happen again. Mer, did you drink Keira’s lemonade?”

She turned back. “Yeah, I did ... wait, did you spike her drink? You fuckin’ pervert!”

Darryl hissed for her to be quiet. Their parents were away for the weekend, but he didn’t want Keira to hear this!

His silence spoke volumes. She moved back to the bed. “You’re gonna give me what I want,” she said as she patted his crotch, “or I’m gonna tell Mom and Dad what you did. Got it?”

“I ... okay...” Darryl whispered. He couldn’t believe the situation he was in!

Darryl woke up early Saturday morning and was eating cereal when Meredith walked into the kitchen/dining room. She normally got up late on weekends so he thought he was safe. She was still wearing her crop top and panties, the brunette’s slim build accentuated by the tight and revealing clothing.

“Hey, bro,” she said as she crossed the room, swinging her hips sexily. She stuck a finger into his cereal and then brought a milk-covered digit to her lips. “Mmm...” she moaned as she sucked on it. Looking at his shocked expression for only a moment, she ducked under the dining room table.

“Mer!” Darryl hissed, and then he felt her unzipping his shorts. Despite the bizarre situation, his cock had started to fill with blood, and once she had taken it into her warm hand, he was lost. Soon his cock was inside her hot mouth again. “Oh, God...”

Keira walked into the kitchen a couple of minutes later, her eyes blinking in the early morning light. “Hey, Darryl,” she said, “seen your sister?”

Darryl froze. Keira couldn’t see Mer under the table due to the interposing kitchen counter, but if the blonde stayed for any length of time she would figure out what was happening under there!

“May--maybe try the basement?” he suggested.

“Oh, okay.” As Keira was about to leave she figured she’d give the cute, awkward Darryl a little thrill first. As she was about to leave, she bent over to massage one defined calf muscle, as if she had a small spasm there. “Mmm...” she moaned.

At the sight of the voluptuous young woman’s panty-covered ass sticking out as she bent forward, Darryl’s cock suddenly filled up to maximum blood capacity. “Uh...”

Then Keira, satisfied, moved out of the room and down the stairs.

“Fuuuccckkk...” Darryl moaned as he came in his sister’s mouth. He closed his eyes, imagining that it was Keira sucking his load for all she was worth and moaning in pleasure instead of his sister.

Then it was done and Mer clambered out from under the table. As she did, Darryl noticed a dark patch in the crotch of her panties before she stood back up. Then he tucked his shrinking cock back into his pants.

“Later, bro...” Mer promised as she sashayed out of the room.

The girls put on their bikinis and hung out in the backyard catching some rays. Darryl knew they’d be thirsty, and there was more of the potion in that bottle ... maybe he could still get Keira hooked on him, and he’d figure out what to do about his sister later.

He whacked off again, which was a little difficult due to his sister draining him earlier, but watching Keira’s tanned body through the back windows of the house gave him the inspiration he needed.