Dennis leaned back against the bathroom wall and groaned as quietly as he could. He looked down at the top of Liz's head as her mouth glided back and forth over his cock and then looked upward, wondering just how he'd gotten to where he was at this moment. Her legs were folded up underneath her as she sucked him and her hand was busy rubbing her mound under her miniskirt.
Just minutes ago, he'd been quietly jerking off after reading one too many stories on Literotica when the door suddenly flew open. He'd looked in shock to see Liz staring at him with wide eyes and he expected the worst.
Liz was the boss's sister. At just about five foot one with a petite body and a flirtatious manner, Dennis had always lusted after her. She had just turned forty and looked great. Her blonde hair was full and framed her face attractively. Her clothes always accentuated her curves and Dennis always thought that she wouldn't have gotten away with dressing so sexy if her family didn't own the business. He knew enough though to keep his hands to himself as far as she was concerned; at least until now.
She stood up from the floor at his feet and bent over the bathroom sink. She reached under her blue denim miniskirt and whisked her panties down until they were around her ankles.
"Fuck me!" she said quietly. "Fuck me now! We haven't got much time!"
He flipped up the back of her skirt and looked at her bum in a state of shock and awe. Although it was tiny, as was the rest of her, it was a perfectly shaped moon with her slit framed by the tops of her thighs.
"Hurry up!" she hissed.
She reached back and gripped his cock and then guided it to her vagina. She poked the head between her lips and let go as she leaned further forward.
"Come on!" she moaned. "Fuck me!"
Dennis ploughed into her with no thought to how long he might last or whether she might be enjoying it, though from the hiss she muttered as he entered her, she must be. He shoved into her as hard and fast as he could. Here was the pussy he'd fantasized about for years and he was buried to the hilt in it.
Liz swiveled her hips as he fucked her, moaning in a low voice as he pumped into her. Dennis bit his bottom lip and shoved his left hand up and under her sweater. He found her tiny breast and forced his hand under her bra. When he cupped her bare tit her nipple was hard and pressing against his palm.
Liz moaned again and pushed back at him. Long before he was ready to cum himself he felt her tense up. He put his free hand over her mouth and she grunted. She bit down on his finger and he gritted his teeth. She screamed but the sound was muffled by his hand. She sighed and then took his bitten finger into her mouth and sucked on it, laving it with her tongue and moving her lips over it lovingly.
She sighed again and leaned all the way forward, folding one arm under her chest and leaning on it. Dennis gripped her hips with both hands and planted his feet firmly. He kneaded her bum and thrust in and out of her. Liz reached between her legs with her other hand and cupped his balls.
"Fuck me Baby!" she whispered. "Cum for me, we haven't got much time!"
By now he was tensing his muscles and pushing in and out of her slowly and forcefully. He felt as though his cock was three times its normal size and he grunted with each thrust.
"Ooh yeah!" she muttered. "Cum for me Baby, I want it!"
He felt himself growing and her hand squeezed his ball sac gently. She groaned when his testicles tensed and her hips moved in slow circles as he pumped his semen deep into her pussy.
"Mm that feels so good!" she whispered. "Your cum is really hot, I can feel it!"
Dennis fell back against the wall behind him and groaned softly. Liz put her finger against her slit and scooped up a glob of sperm that dripped from between her lips. She put her finger in her mouth and then grinned at him.
"Mm!" she said. "That was good!"
"Wow!" Dennis said, finally managing to get over his speechlessness.
Liz laughed. It was a breathy cackle that he had heard many times in the past. He always thought it was very sexy when he heard her laugh like that before. Now with his semen coloring her bottom lip slightly and her panties around her ankles he thought it was probably the sexiest thing he'd ever heard.
"Wow!" he said again.
Liz chuckled quietly and bent down. She slipped her panties into place and adjusted her skirt. She put her finger to her lips and put her ear to the bathroom door.
"I don't think anyone's out there," she said quietly. "I'll go first. Don't come out for a few minutes after I'm gone."
She opened the door gingerly and peeked out. She sighed with relief and walked out, closing the door behind her.
Dennis pulled his pants up and swallowed hard. He put his hand on his cock and smeared the juices from it into his palm. He held it to his nose and breathed in her scent. If it hadn't been for the smell he might have doubted that the last five minutes of his life really happened.
He fastened his pants and looked at the sink, debating whether he should wash his hands. On the one hand he wanted to keep her scent on his hand so he could inhale it whenever he wanted to. On the other hand, he didn't want anyone else in the office to pick up on the smell of sex.
Reluctantly he washed his hands and then flushed the toilet for good measure in the event anyone might be listening from outside the bathroom door. There wasn't.
He left the bathroom and walked as calmly as he could to his office. He glanced toward Liz's office as he passed by and she grinned slyly at him. He tried to be nonchalant but his cock began to grow again as he pictured her bent over the sink as he fucked her from behind. She winked at him and cackled again.
That did it! He was fully hard now. He scurried into his office and sat down before anyone ventured into the hallway and saw him with a bulge in his khakis. He sat at his desk and stared at his computer monitor trying to remember what he was working on before he got caught up in reading erotica.
His day had started out so normally! He had walked into the office and plugged his laptop in. He was just finishing connecting the monitor when Liz had walked in.
"Good morning!" she said cheerfully as she always did and then continued into her own office.
