"Can we stop here? Maybe I can find someone in the grocery store." Samantha sat in the passenger seat as her mother drove them home from the doctor's office.
"No." Nancy merged over into the lane that would take them home. "You can't just find random people every time."
"You don't understand! The pressure's been building since we left."
"Didn't you take those meds the doctor gave you?"
"You saw me do it. They don't seem to be helping." Sam squirmed in her seat. "I really need something."
"Just be patient. We're almost home. I'll figure something out."
Nancy had heard her daughter screaming in her bedroom earlier that day. When, she'd gone to investigate, she'd discovered Samantha using two dildos to masturbate: one in her pussy and the other in her ass. She'd been screaming in frustration.
Apparently, dildos just weren't doing it anymore.
Nancy understood. She'd been struggling with the same weakness her entire life. Luckily, she'd found Samantha's father early on and he'd never had a reason to leave. She'd made sure of it.
Now Samantha had her same problem. Her same desperate need. Her same insatiable libido. Except, she didn't have a partner, and Nancy would not have her daughter allowing herself to become a common whore just to satisfy her urges.
Unfortunately, the medication didn't seem to be helping either.
They pulled into the driveway and Justin, Samantha's older brother, stepped outside to meet them. He'd heard his sister's cries in the past and knew she'd been taken to the doctor, but he had no idea why.
He was about to find out.
"Is everything alright? Sam? You feeling OK?" Justin had always been a responsible older brother.
"I'll explain inside. Just go. Your sister needs your help."
Samantha looked at Nancy in horror. Nancy just rolled her eyes and waved at her to follow her inside. She'd heard what Sam had been imagining during her frustrating masturbation sessions. Now, she'd get to act them out.
They shuffled into the house, Nancy holding the door for her daughter. Samantha was a short brunette at 5' 2", shorter than Nancy by about four inches. They shared hair color, though Sam wore hers down and Nancy preferred to contain her own locks within a ponytail. Sam was also rather busty for a girl her size. Something else she'd inherited from Nancy - though they looked larger on Sam's small frame.
Having met their father early in life and spending so much of their time having sex, it was no surprise when Nancy had gotten pregnant with Justin at 18. Robin, the middle girl, had popped out one year later, followed quickly by Samantha. Nancy had decided to start the pill after that. Now, Samantha was eighteen, having just graduated high school.
Luckily, the urges hadn't hit her during school.
But now, here they were. And her daughter needed help. She couldn't help herself, nor could the doctors. Better to get help in a safe and controlled environment. At least, that was how Nancy justified the decision to herself.
"Justin, please join me and your sister in her bedroom." Nancy raised an arm towards Samantha's door. Her children complied. Nancy could see a hint of excitement in her daughter's eyes, even if she was trying to hide it.
She should feel lucky.
Nancy followed them into the room and closed the door behind her.
How do I even start this?
"What's going on, mom?" Justin had leaned against Samantha's dresser, his arms crossed. "Is Sam OK?"
"Your sister is medically fine." Samantha had sat herself on her bed. No doubt in preparation. She squirmed. "But she needs help psychologically and physically."
"What does that mean?"
"I'm a nymphomaniac." Samantha met her brother's eye.
"Isn't that a person who, like, loves trees or something?"
"It means she loves sex." Nancy stared her son down.
Only way to do this is to be blunt.
"She has a recurring, desperate need to orgasm. She can no longer do it herself and the medications the doctors gave her are not working."
"What? That doesn't sound real. More like something someone made up as a poor excuse for a porn." Justin looked back and forth between his mother and sister, but they both just gave him straight expressions. "You're serious?"
"Completely. And, right now, she's feeling the urge."
Justin looked away from his sister and stood up straight, his arms crossing tighter across his chest. Nancy approached him. He looked so much like his father at that age. Straight brown hair, combed forward. Slight stubble. Bright gray eyes. "Your sister needs your help."
Justin looked down at his mother. "You can't seriously be asking me to-" He looked across Nancy's shoulder at Samantha. "To do what I think you're asking me to do?"
"It's better you than a bunch of random guys she'd otherwise go out and find. You should have heard her on the car ride over."
Samantha spoke from behind Nancy. "There's just so much pressure in me. I need release. I can't help it."
Justin's expression softened after hearing his sister's plight. Nancy poked him in the chest. "Are you going to step up and help her?"
Justin again looked back and forth between the two women. A number of expressions rose to his face. Finally, he said, "If she wants me to, I'll help however best I can."
"YES!" Samantha sounded more eager than her previous feigned horror would have suggested. "Come help me big brother!"
Nancy turned around and saw that Samantha had opened her legs wide and reached out her arms to Justin. Justin, still seeming hesitant, walked passed Nancy and carefully lowered himself over his sister. She embraced him with her arms and legs, pulling his crotch down to meet hers.
Nancy felt awkward standing there. She wasn't sure if she should leave and give them privacy, or stay to show her support and make the process more clinical. Samantha pulled Justin's shirt off from the back, showing his nicely defined lats. Nancy decided to stay.
Her son's body was blocking her view and she wanted to make sure things were proceeding respectfully, so Nancy walked around to the end of the bed. Samantha had already brought her face up and was kissing Justin frantically. Justin just held his head in place, allowing it to happen, but not participating.
"Your sister needs you to kiss her back. This won't help her if you're distant."
Justin darted his eyes to his mother, then back to his sister. Samantha pulled his head down, smashing his lips against her own. Justin, now fully laying on top of his sister, took one arm that had previously been holding him up, and placed it on Samantha's breast. After a moment, he started to squeeze. His eyes closed, he turned his face, and his lips opened wider.
"There you go. Be a good brother and help your sister." Nancy felt a subtle warmth bloom within her.
The siblings started to buck their hips against each other. Justin, his hesitation seeming to finally leave him, grabbed his sister's other breast. Samantha broke the kiss by licking up the side of his face, then saying, "Take off my shirt. I want to feel your bare hands maul my tits."
Justin simply slid his hands down his sister's torso, slipping his thumbs below the hem of her shit, and pulled it up over her breasts. He quickly pulled her bra down below the mounds. They didn't move much, despite the lack of support. Justin resumed his squeezing against his sister's exposed flesh.
