Elena Popescu removed her talisman from her backpack and pointed it at Alexa, who was busy kissing her boyfriend Ryan. She summoned her magical energies and softly chanted a curse. Unfortunately, Elena was not fluent in Romanian, being American-born, and made a mistake. She said "Sub lună plină, te vei transforma într-un om" instead of "Sub lună plină, te vei transforma într-un lup-om."
A subtle streak of light shot from the talisman to Alexa, who immediately tightened her grip around Ryan, forcing her tongue into his mouth and grinding against him. "Whoa girl!" he said. "What happened to all that homework you had to do?"
"Fuck homework" she panted hoarsely, grabbing his crotch. Then, as if snapping out of trance, she let go and blushed. "Oh God, I don't know what came over me. I didn't mean to do that in public."
"I don't mind baby" grinned Ryan. "Just make sure you're still frisky tonight."
They made arrangements for Ryan to pick her up at 8 and kissed goodbye.
As Alexa walked toward the parking lot, her brother Daniel caught up with her.
"Daaaamn Sis! Someone's thirsty for jock junk! I saw you grab Ryan back there. What got into you?" He'd only meant to tease, but Alexa flew into blind rage. She shoved him so hard he fell over. "You wanna make something of it asshole?!" she shouted in a rather low voice. Daniel gazed at her with shock. "Jeez sis, what the fuck is wrong with you?" Alexa instantly snapped out of her rage and ran to help him up.
"I'm so sorry Daniel! I'm so sorry! It must be the heat or something."
"That's okay" he said, and they hugged.
They drove home and talked normally as if nothing had happened. Their parents were out of town at an academic conference, so Alexa and Daniel had the house to themselves. They flopped down on the couches and luxuriated in the air conditioning.
"Daniel," she said in a naughty voice, "let's have a beer."
"Uh sure..." he said with surprise, since his sister wasn't a big drinker. They split one can. Then another. Then Alexa had one all to herself. Then another. She chugged it like a fratboy and crumpled it with one hand.
Daniel looked on with further surprise. "Umm, Sis, shouldn't you do your homework before getting wasted?"
Alexa laughed and then gave a gigantic belch. "Fuck homework!" she hollered. "Let's arm-wrestle bitch!"
"Wow," said Daniel, "the heat must be really getting to you. But okay, prepare to be beaten." Their arms interlocked.
Daniel had expected a quick victory but found himself in a titanic struggle. Inch by inch, his arm was slowly forced backward until Alexa slammed it on the tabletop.
"YES!!" she roared, flexing one arm, and then the other, like a bodybuilder. "Ripped as fuck!"
"Holy shit Alexa, you should take on the football team" said Daniel, massaging his crushed hand. "I'm going to do my homework."
"And I'm going to eat!" she said. She heated up a tray of leftover meatloaf and ate not only her share but Daniel's while drinking another beer.
Afterward a faint voice in her head reminded her of her homework. She complied but found herself unable to concentrate. For the first time in her life, she found math totally boring. Looking for something else to do, she heard Daniel turn on the shower and wandered into his room, where she found his weights. She took them back to her room and began pumping iron. Getting sweaty, she stripped and exercised naked. Working her muscles, she thought of Ryan's biceps and six-pack, first with arousal, then with envy. He was lucky to be so studly, she decided, and wondered what that felt like. This aroused her further, and she began touching herself. Then she imagined Ryan on his hands and knees, getting fucked by someone just as muscular as him, and her moist pussy began dripping. She grasped her clit in ecstasy.
Daniel had finished showering. He towelled off and went into the hall. Passing by the open door of his sister's room, he saw her furiously masturbating. He stared in dumbstruck astonishment, unable to look away, despite having never before felt any conscious attraction. Alexa was groaning and moaning, her eyes shut tight. Her body writhed in front of the bedroom window, and through it could be seen the start of nightfall. The full moon was soon to rise...