The ringing of the doorbell roused Kristen from her light nap on the couch. Quickly glancing at the clock on the wall, she frowned and strode toward the front door. It was only three o'clock in the afternoon; too soon for Misty or Kevin to be home, and they wouldn't ring the bell anyway.
A dark shape was visible through the frosted glass of the double doors. She checked the small monitor mounted to the right of the door. It showed an older black man in a security uniform fidgeting nervously as he waited. He was about to ring the bell again when Kristen cracked the door open.
"Can I help you?"
"Is Mrs. Carter available?" the man asked.
"And you are?"
"Oh-sorry! My name is James Knight I'm head of security at her office building." He flashed a timid smile.
"Sorry, she should be at her office."
"Actually, she's been gone most of the day. I was hoping to catch her here anyway, since this is more of a personal call." Kristen noticed he was holding a small sealed manila envelope, self consciously shifting it between hands as he spoke.
Kristen opened the door a little more, pulling her silk robe tighter around her body. The security guard's eyes widened at the sight of her rotund midsection and heavy breasts silhouetted in the fabric. She smiled in spite of herself.
"I'm her sister, Kristen." She held out her hand and he took it with a perfunctory shake. "If it's something important you can leave it with me and I'll make sure she gets it."
"Well, I don't know. Like I said it's... personal."
"Up to you." she said dismissively, and started closing the door.
"Ok wait." He was holding out the small envelop and a business card. "Just give this to her and have her call me when she has the chance."
"Will do." Kristen promised, taking the items.
"Thanks." The guard quickly turned and headed for his vehicle.
Inside, Kristen turned the envelope over slowly; trying to discern what could be in it. Something more than paper from the sound it made and the way it slid around. She sighed and tossed it onto the coffee table. As she sat there surfing the cable channels for something interesting, her eyes kept being drawn back to the yellow rectangle.
Ever the curios one, she could never leave things alone. Christmas and birthdays had always been a nightmare for her parents when she and her sister were growing up. She would turn the house upside down for weeks searching for any trace of a gift. Once she found them, and she always did, it was like a full-on crime scene forensics investigation as she examined each package.
She picked up the envelope and examined it again. The glue seal was poorly attached and already peeling along at least an inch of the flap. Ten minutes later, with the help of some steam from the clothes iron, the envelope was open. She dumped the contents onto the table: there was a silver DVD in a case, and a hand scribbled note reading:
Mrs. Carter,
Please forgive me for being forward, but you should really be more discrete in what you do at the office after hours. If someone else had been on first shift instead of me, there might have been a stink made. I wasn't sure what to do, that's why I didn't bring this to your attention earlier. This is the only copy of the security footage from your office. And don't worry, my lips are sealed.
It was signed Jim Knight, Security Chief. Kristen picked up the DVD and looked at it. It was a plain, recordable disk. The only label was 'Room 322 Feed' and a date of three weeks ago.
More curious than ever, she dropped the disc into the DVD player. A moment later she was watching her sister scan a bookshelf in an office, presumably her own. The video was surprisingly clear for a security camera, although it was in black and white and looked a little washed out. After a few minutes another figure walked into the room, causing Kristen to gasp. Kevin stood behind her sister, clearly admiring her ass. Suddenly it clicked: the nervousness of the guard, the 'personal matter', the note about being discrete. It all made perfect sense. She was watching security footage of the night Kevin had went to help Misty after work and stood her up!
She watched transfixed as Kevin walked up to her sister and goosed her ass. Although there was no sound, she could tell that Misty had screamed by the way she jumped and turned quickly. On the screen her sister was now topless and Kevin was kissing his way across her chest.
Kristen sat back on the couch, letting her robe fall open to her sides. Her nipples were hard mountains rising up from the sloping mound of her breasts and her crotch was on fire. One hand crept up the slope of her stomach and over her chest to pinch one nipple. Her other hand slid down to press the lacy fabric of her panties into her cleft.
In the video her sister was on her knees, gripping Kevin's fat cock with both hands and stuffing it into her mouth. A sharp pang of jealousy shot through her as she watched him disappear into her sisters' face. She yanked her panties to the side and plunged two digits into her dripping pussy, moaning as she fucked herself with her fingers. Her breathing came in short, ragged gasps. She watched her brother-in-law step between her sisters' legs and sink his meat into her waiting hole. Another bolt of jealousy flew through her at the look of pure ecstasy on Misty's face, and the fury of her fingers doubled. Her eyes were glued to the screen watching to two impromptu porn stars enjoy each other's bodies. On the screen Kevin's head was thrown back, his look of animal lust caught perfectly by the high mounted camera. She recognized that look as the face he made when he came, and the realization that Kevin was pumping his cum into Misty's waiting pussy was all it took to push her over the edge. She rode the crest of her orgasm, back arched, pregnant belly reaching for the ceiling, face contorted, screaming out Kevin' and Misty's names over and over again while her fingers continued to pound her throbbing pussy. Finally she collapsed back on the couch, utterly spent and gasping for air. On the television, the footage ended and cut to a static test pattern, like you used to see on broadcast T.V. when the channel went off the air.
***
Misty was the first one home that evening, and found Kristen in the kitchen busily preparing dinner.
"Hey sis." she said cheerfully, dumping her purse on the bar.
"Hey, how was work?" Kristen was slicing tomatoes on top of a big bowl of salad.
"Eh, same old same old, anything exciting happen today?"
"Uh, not really," she paused, trying to come up with something, "the baby's been moving a lot. Other than that it was pretty quiet." She shot a quick glance from the corner of her eye at her sister, who was flipping through the stack of mail on the bar idly.
"Have you talked to Kev?"
"No, haven't heard from him."
"Who's talking about me?" Kevin asked, strolling into the kitchen. He hugged his wife and planted a kiss on her lips.
"Oh, just wondering if Kris knew when you'd be home."
He looked at his watch seriously for a moment. "Right about now."
"Funny." The sisters said in unison.
"I'm going to go change." Misty announced. "Be back in a minute." As soon as she was out of sight Kristen was on Kevin like white on rice; grabbing his crotch, pressing her body against his, pulling him down to her for a long, wet kiss before finally releasing him and stepping back.
"Wow." He said quietly. "Where did that come from?"
"You'll just have to wait and see." she said coyly.
"Hey Kev!" Misty called from upstairs. "Come here a sec!" He looked at Kristen again, but she had turned her back to him.
Upstairs, Misty was striping off her modest business suit when he walked into their bedroom.
"What's up babe?"
"Hey does Kristen seem to be acting funny to you?"
"No," he said slowly. "Not that I've noticed. Why?"
