[Author's note: All characters in this story are 18-years and older.]
***
Ryan & Penny
Ryan was at his desk, searching for some songs on his computer, when he heard a rap on his open bedroom door, behind him.
"You busy?" his step-sister, Penny asked, as she walked in.
"Not really," he answered, "What's up?"
"I wanted to show you something," she said, sitting down on his extra chair, and navigating to a video on her phone. She held the phone out to him, and when he took it and saw what was playing on the little screen, his mouth dropped open.
There, in full color, and hi-def sound was a video of him sitting in front of his computer, completely naked, his hard cock in his hand, jerking off while watching a group-sex porn video on the screen in front of him.
"That was last Saturday," she said. "I guess you thought we were all gone to the mall, probably. But I changed my mind, and Mom and Dad dropped me off at the mailbox, and I walked back. I guess you didn't hear me come in, huh?" Her tone was matter-of-fact smug; a tone that he knew all too well.
He could tell that the video had been shot from near the floor, at the edge of his doorway. She had probably been lying on her stomach, out in the hallway to take it.
It wasn't
up close and personal
, and the view was partially blocked by the arm of the chair, but you could sure see what he was doing, well enough.
As she took the phone back from him, she watched a little more of the video, and said, "Boy, think how embarrassing it would be if this were to end up on YouTube, or something."
"What do you want?" he said resignedly.
It was hardly the first time she had blackmailed him. Although they generally got along pretty well, but at 19 to his 18, she was the older sibling, and she always knew when she had an upper hand and she wasn't afraid to exploit it. Over the years, he had done her chores, "shared" his allowance, and even let her use his car, all to keep from getting in trouble with their parents ... something he seemed to have a knack for doing.
"Three things, actually," she said.
He groaned.
"First," she said, "I want to watch you do it, again."
"
What!?
" he said. "No way! You didn't get enough video the first time?"
"No camera," she said, setting it on his desk, and covering it with his notebook. "I just want to watch, up close. I thought it was hot as hell to see you doing that."
That was certainly not the direction he expected this to take.
"I don't think I could even get it hard with you sitting there watching me," he said. "It'd be too weird."
He had had plenty of sexual fantasies about his slightly-older step-sister since he reached puberty, but jerking off while she watched him wasn't one of them.
"Maybe you could get hard if you had inspiration," she said. She crossed her arms, grabbed the bottom edge of her t-shirt, and pulled it off over her head in one smooth motion.
Again, his jaw dropped open, as he stared at her naked tits, less than two feet from his face.
"I know you've been sneaking peeks at my boobs since they started growing," she said, cupping them in her two hands. "It's actually a little flattering to know you like them that much." She gently rolled the nubs of her nipples between her fingers and thumbs.
"Come on," she said with a grin, "I showed you mine, you show me yours."
He lifted his butt off the chair, and had his pants and shorts around his ankles in seconds. His stiff erection stood up, fully
inspired
!
"Stroke it," she said, still massaging her tits.
She needn't have told him; his hand was already on its way there.
After a few slow strokes up and down the shaft, while he just stared at her tits, he took a moment to spit in his hand to use as a lubricant—like he'd done a thousands times since discovering what jerking off was.
As he slid his hand, back and forth, over the head of his hard cock and down to his pubic hair, Penny let out a long sigh, and pulled harder on her nipples. "That is so
fucking
hot!" she said staring intently at his glistening cock as his hand slid slowly up and down its length.
"Does Greg do this for you?" he asked, referring to her boyfriend, but not taking his eyes off her gorgeous tits and the nipples she was twisting and pulling.
"I never asked him to," she said. "I never knew how hot it was 'til I saw
you
doing it. After I watched you, I went downstairs in the bathroom, and I fingered myself to a
huge
orgasm."
He pumped his dick a little harder at that thought, then said, "Why don't you do it now? Take your shorts off and finger yourself while I jerk off for you."
He was definitely getting into the voyeur thing. He would never have guessed that having somebody watch him masturbate would be anything but humiliating, but it was unbelievably
arousing
.
Penny stood up, pushed her shorts to the floor, and then sat back down, facing him with her legs spread wide apart. She rubbed both hands over her pussy, pressing down on her clit, and squeezing her lips together. Then she spread her lips apart, and used a single finger to rub on her clit. She moaned and closed her eyes at the familiar electric feelings it sent all through her body.
"Oh, my
God
!" Ryan said, staring at her finger squishing over the soft folds of the pussy he only ever dreamt about. "
That
is so fucking hot!"
As Penny slid a finger between her wet pussy lips, burying it all the way into her cunt hole until her hand flattened against her "landing strip" of pubic hair, she said, "You've never watched Suzy do this?"
"Same thing," he said. "I never asked her to ... but I think I
will
!"
"You think she'd do it for you?" Penny asked as her hand picked up speed, finger-fucking her pussy hard, making wet slapping sounds.
"I don't know," Ryan said as he watched Penny's hand flying, and picked up his own pace to match her rhythm. "She
can
be kind of ... you know,
adventurous
when she's hot."
They both stopped talking, and concentrated on watching the other jerk off, like they'd each done countless times, but always alone.
In his most perverse fantasy, Ryan would never have imagined himself sitting a foot and a half from his beautiful, stark-naked step-sister, jerking off his rock-hard cock while he watched her slam her finger in and out of her wet cunt, and squeeze and pull on one of her nipples at the same time!
Then suddenly, Penny stopped fingering herself, and reached out and grabbed Ryan's wrist, stopping him for jerking.
"What? What's the matter?" he said.
"You're going to cum, if we keep this up," she said. "Me, too."
"
Well, yeah!
I thought that was the whole point!"
"It is," she said, "but not so fast. I want you to wait."
"Wait? How
long
?" he asked, thinking this was one of her teases. He wondered if she was suddenly going to turn
Evil Mistress
on him.
She didn't answer his question, but instead said, "Open up that video you were watching the other day."
"What?" he said. "Pen, I assure you I don't need to watch a video to keep it up for you. Watching you finger-fuck your own pussy is the hottest thing I have
ever
seen!"
"I like watching you jerking off your cock, too," she said, "but there's something in the video I want to see again. In fact, that's one of the other things I want; for you to make me a copy of that video—or send a link to it, or whatever."
"What's the third thing?" he asked, as he reached for a Kleenex to wipe the pre-cum and spit from his hand before touching his keyboard.
"I'll tell you when we're watching the video," she said.
As Ryan navigated to his porn stash, and typed in the password to the folder, what had been the hardest hard-on he had probably ever had began to soften a bit.
Noticing, Penny reached over, wrapped the fingers that had just been deep in her own pussy around his shaft, and started to slowly stroke it up and down.
"I'll keep
this
up, while you bring the