It wasn’t the first time his sister’s friend Jamie had walked in the back door with her clothes slightly rumpled, her makeup smudged, and her blonde hair out of place. Far from it. It didn’t take master detective skills to know that she was sneaking off and having sex with her boyfriend.

Greg barely glanced her way as the door opened, but it was more than long enough for her expression to scream, Oh my god, why are you looking at me? He was quick to avert his eyes and concentrate on his plate. He didn’t even look up once she’d passed, even though he knew her ass had to look incredible in the tight, short skirt she was wearing. The possibility that she might look back and give him an even more withering stare was enough to keep him staring at his plate.

His older sister was popular, and her friends were hot. He’d grown used to the torture. He was of two minds about Lynn going to college in the fall, ending the parade of hotties through the house.

Greg finished eating and avoided going upstairs because the girls were up there. He sat down on the couch and turned on the television, though his attention was mostly directed to a group chat on his phone.

When the doorbell rang, he got up to answer it, still engrossed in his phone. Upon opening the door, he was surprised to see Jamie’s mother.

“Is Jamie here?” she asked without preamble.

“Yeah, they’re upstairs,” he answered.

She looked dubious. “Did they come straight here from school?”

“They were already here when I got off the bus,” he answered. Though he had his license and a car, his parents hadn’t yet given him permission to drive to school.

“And they haven’t left?”

He felt the slightest needling temptation to rat her out because Jamie looked at him like something she needed to scrape off her shoe, but resisted, and answered, “No.”

Jamie’s voice arose from behind him as she came down the stairs, “Gawd, what do you want, Mom? I’m here. See?”

Jamie’s mother narrowed her eyes, pointed her finger, and said, “So help me, if you’re running around with that Chad boy.”

His sister chimed in, “We’re just hanging out and getting ready to go get something to eat.”

Jamie’s mother looked at him for a moment in evaluation, sighed, and then called to her daughter, “I’ll be checking up on you. You’re not eighteen yet. You’d better–”

Greg heard Jamie let out a dramatic, “Whatever!” and stomp up the stairs.

There was a moment of uncomfortable silence, and then Jamie’s mother said, “Uhm... Thank you.”

Greg nodded, and shut the door when she headed toward her car. When he turned around, his sister had a look of surprised relief on her face. It was evident in her voice as well when she said, “Thanks.”

He shrugged as he approached to go up to his room. “You owe me one.”

“Nuh uh. I got you and your nerdy friends that six-pack, so we’re even.”

He had to agree. “Even.”

****

Greg came home from a friend’s house to discover that Jamie was sleeping over. After an admonition not to bother Lynn or her friend, his parents went out for weekend date night in a cab. Taking the cab meant they planned to drink, which meant they probably wouldn’t be home until after midnight.

Playing online games with his friends drowned out the chatter, laughter, and giggling coming from his sister’s room. He and his friends were in a lobby, trying to decide whether to replace one of the guys who had gone offline with a rando when his sister knocked on the door.

Greg unlocked the door and asked, “What?”

Lynn said, “We’re going to bed as soon as we get out of the shower, so could you keep it down?”

His brow furrowed, as a couple of minutes after ten seemed beyond early for a weekend sleepover.

“We’re driving out to the coast in the morning,” she explained.

“Yeah. Okay. We’re short a guy right now anyway, so we’re probably going to quit.”

“Thanks,” Lynn said as she headed back to her room.

As he was closing the door, he caught a glimpse of Jamie headed for the shower with what looked like pajamas under her arm. He closed the door, gave the lock a twist, and headed back to let his friends know he was signing off. They’d come to the same conclusion anyway, so he shut the system down and grabbed his phone.

Lying on the bed in the quiet house, he could just barely hear the shower running down the hall. The thought of his sister’s hot friend naked in the spray a couple of doors down quickly transformed into a full on fantasy, which had a predictable effect.

He was aching by the time he heard Jamie return to the room and his sister head for the shower. Music started playing from his sister’s room, providing cover, so he decided to let off some pressure. He grabbed his lotion, a box of tissue, and opened a familiar picture from his sister’s social media that was an appropriate accompaniment to his fantasy. The picture of Jamie in a skimpy, soaking wet bikini left little for him to fill in with his imagination.

He got in a few strokes while the picture of her merged with his fantasy, but then a sense of uneasiness washed over him. A heartbeat later, he realized he was hearing footsteps in the hall outside his room. He froze – dick in lotion-slick hand – and listened carefully. When someone touched the doorknob, he quickly yanked up the covers, even though he’d locked the door. Better safe than sorry.

It proved to be a wise decision, because the doorknob turned. His ears burned like torches when he realized he must not have completely turned the knob to lock the door. The next thing he knew, Jamie slid through the door in silky pajamas and closed it behind her.

Greg swallowed hard and focused every ounce of will on not staring at her body barely clad in clingy cloth.

“Hey, Uhm...” Jamie said in a voice barely above a whisper, and then shrugged. “Thanks for lying to my mom. You totally saved my life.”

“You’re welcome,” he said, and winced when his voice cracked a little. After a swallow, he said, “I’m no snitch.”

“I just wanted to say thanks. I would have been so dead...” she trailed off, and her eyes widened. She brought her hand to her mouth and let out a snort before saying, “You were jerking off?”

His whole face felt as if it was on fire as he said, “No.”

“Please,” she said, and rolled her eyes while gesturing at the lotion on the bedside table. Then she pursed her lips and said, “Hmm... How about I do something for you, and you cover for me if my mom tries to catch me out again?”

He was too embarrassed to think, let alone speak.

“Well?” she asked.

“Huh?” he managed to mutter.

“You cover with my mom if she checks up on me, never tell anyone about this...” She rolled her eyes again and said in a sarcastic tone, “As if anyone would believe you.” Then she said, “And I’ll finish you off.”

He couldn’t believe what he was hearing. It had to be a cruel joke. There was no way she was serious.

“So, deal?”

“You’re fucking with me,” he muttered, not trusting her.

“Definitely not,” she said. “I will jerk you off, though. Deal?”

Still suspicious and reeling from the possibility she wasn’t messing with him, he didn’t answer immediately.

Jamie sighed and said, “Fine. I’ll take my top off too, but that’s it.”

Those words caused some primal, monkey part of his brain to claw its way to the fore, and she’d barely finished speaking before he said, “Deal.”

Jamie chuckled, and without another word, grasped the bottom of her pajama top. He stared in awe at her naked tits as she hung the top on the footboard of his bed. Her nipples were a paler pink than he’d imagined, and not nearly so prominent. What they were was real.

His cock – which had gone flaccid from shock and shame – immediately surged back to life.

Jamie stepped over next to the bed, absently grasped the covers, flipped them up, and then gave the lotion bottle a pump into her hand. Greg quickly pushed the covers the rest of the way down.

“We’ve got to make this quick before your sister...” She glanced toward him, and trailed off as her eyes fell on his rapidly swelling manhood. Jamie gave a little shake of her head, pumped another glob of lotion into her palm, and continued, “Before she gets out of the shower.”

His sister’s friend was all business as she sat down on the bed next to him and wrapped her hand around his cock. He stiffened and trapped a grunt in his throat from the chilly lotion.

Jamie shook her head as she stroked her hand up and down his erection to smear the lotion. “I thought you’d have a micropenis. It’s actually not small.”

He sucked in a sharp breath a moment later when she started jerking him hard and fast. She wasn’t playing around. The sensation of someone else’s hand working his cock was unbelievable. He throbbed like crazy in her grasp. The jiggle of her breasts from the motion of her hand caught his eye, and he couldn’t help but look.

To his surprise, she scooted a little closer and said, “You can touch them if you want.”

Once again, his monkey brain seized control. He slipped a hand underneath her pumping arm and palmed her breast. He explored the firm, but yielding teardrop with amazed fascination. The bumps of her areola were a novel sensation to his fingertips. Her nipple looked as if it was standing out more, and it certainly felt stiff.

All the while, she was jerking him like a machine. The squishy sound of the lotion was interrupted at the top of every stroke by the fap of her fingers sliding over the head. It only took a few seconds for the lotion to begin to dry out, but she just kept stroking. Having never masturbated dry, he found the sensation of the skin sliding over the hard core in her grip to be quite intense.

She pulled away from his questing hand and stopped stroking when she shifted position. He lamented not being able to reach her tits, but got over it when her other hand slipped between his legs to cup his balls and gently roll them.

“Come on. Come for me,” she said while looking straight into his eyes.

She knew what she was doing. That was for certain. A tickle in the head of his cock soon turned into an itch. That itch steadily intensified, spread, and carried with it growing warmth. He had to fight to keep grunts and groans trapped in his throat.

Jamie’s eyes lit up with mischief. “There you go. Do it. Come for me,” she said in a voice that was the sexiest thing he’d ever heard in his life.

No matter how much he wanted it to last forever, the excitement and arousal was too much. A few strokes later, he was approaching the edge.

“There you go. Do it. Do it,” Jamie encouraged him.

Only the knowledge that his sister was just down the hall kept him from roaring his pleasure as his cum surged up. Jamie let out a quiet laugh when the first spurt spattered over his stomach. She gave him a few fast strokes, and then a slow one that tugged on the head of his cock just as his muscles contracted again. He couldn’t hold back his gasp as cum shot all the way up to his neck.

Again and again he pulsed, spattering himself with semen. Jamie giggled, somehow sliding her fingers to the head at the peak of every pleasure spike, to make him come harder than he’d ever imagined. When a pained groan rumbled a little too loudly in his throat, she stood his cock straight up. A few fitful dribbles left a white trail down his throbbing cock and a puddle at the base.

Jamie lay down across his legs, and tapped the head of his cock against her nipple while wearing an almost evil grin. He went limp, and his eyes drifted closed. A sigh of relief escaped him when she released his sensitive cock.

The bed shifted. He still couldn’t open his eyes, and he was breathing like a bellows. He managed to force his eyes open as she was dropping the tissue she’d used to wipe her hand in the trash. She glanced at him, gave a little shimmy that made her breasts quiver, and then dropped the box of tissues next to him.

“Been saving that a while?” she asked as she sauntered over to grab her top from the footboard. “That is a lot of cum.”

“Nuh uh,” he grunted – still too weak to think about cleaning up, even though the mess on his chest was already starting to feel cool and clammy.

“You do realize this is never happening again, and I’ll deny it if anybody asks me?”

He found the strength to nod while she straightened out her top, never taking his eyes off her. It only took a second or two for her to slide the top on, hiding her incredible tits.

Jamie stiffened, looked at the door, and said, “Shit.” Greg faintly heard the blow dryer from down the hall. She moved quickly to the door, opened it, and started to slip out, but paused, and looked back in. She bit her lower lip, turned around, and yanked down her pajama bottoms.

Greg got a brief, but glorious look at her shaved pussy when she spread her nether lips with her fingers. A moment later she jerked the pajama bottoms up with a giggle, and slipped out the door.

Lies always result in a mess, but as he reached for the tissue box, he decided that this was a mess he could live with.