He checks in on Nadine.

Author's note: Another day and another ridiculous amount of likes for what is, essentially, one of my many fantasies. This is only my second piece of erotic fiction and the responses I've received have really fuelled my will to write more. Please drop a like on chapters that hit the spot, they've been massaging my ego massively - Tantalus.

I hesitated at the top of the stairs. My erection, briefly satisfied from its eruption, pulsated anew. Just what was happening to me? It throbbed deeply and I pondered how I could satiate it so that I could think clearly for a minute.

I quietly stepped towards Nadine’s room, noticing that her door was open enough to see that she was inside sitting on her bed with her phone to her ear as she stared off into the distance.

“Mmmhm,” she nodded, clearly replying to something said on the other line.

“Yup,” she agreed again.

Then, her face scrunched up and anger filled her voice.

“Now you listen here Mr. Simpson,” she snarled, “if you even dare think about firing me because I wouldn’t fuck your client friend, I’ll make sure your fucking pig of a wife finds out about you pumping your pathetic little dick in and out of your secretary every day!”

I had never seen her so furious and I watched intently to see what would happen next.

“Mmhmm,” her voice returned to its previous neutral tone, “I thought so, better make that raise 20% though, you don’t want me to think you’re not serious about keeping me on staff.”

She grinned evilly, licking her lips as she listened to her boss on the phone.

“Excellent, now, be a good boy and tell your friend that if I ever see his fat fucking face again, I’ll rip his tiny excuse for a dick off,” she said, her voice dropping to a low growl about halfway through the sentence.

She tossed the phone down on her bed and flung herself back, lying down and breathing a huge sigh of relief.

“Fucking dicks,” she half whispered.

I noticed that, from her new position, I could see right up her black dress to the pantie-less mound beneath.

She sighed again, a little louder this time, and reached behind her headboard. She grabbed two dildos, one small, about five inches long with a rabbit eared clit stimulator hanging underneath. The other was pretty big, I’d guess about ten inches, and it had a blunted head and a large knot an inch or so before the base. I’d seen similar ones in porn, vaguely animalistic and incredible to watch being thrusted into a tight, quivering hole.

She grabbed a small bottle of lube and applied a little to each, selecting the smaller of the two as she lifted the hem of her dress. I watched in awe as she switched it on and it began humming, placing it flat against her clit as she closed her eyes.

I took the opportunity to sneak into her room, moving to the foot of her bed so that I could watch the show.

Her breathing became deeper as she toyed more and more with the vibrating shaft, rubbing it along her crease and finally sticking it in.

She reached up with her free hand and pulled the top of her dress down, releasing her constrained tits and kneading them roughly. I looked down, the larger dildo sat, lubed and ready. I decided then that I was going to lube it up a little more for her.

I started stroking my already throbbing cock as it positively pulsed at the sight of my older sister writhing on her bed. Her breathing increased, changing to panting, and I matched my thrusts with her furious movements. Her toes curled in ecstasy just as the first ropes of cum spurted out of the end of my cock and onto her large dildo and silk sheets.

I didn’t worry about the mess, I knew she’d just put it down to spilled lube, and I craned closer to get a better view of the show.

Her pussy positively leaked with her own cum, and her hand fumbled impatiently to grab the larger dildo. She eased it into her slowly, its blunt head parting her lips wide as, inch by inch, she crammed it into her pussy. My cum mixed with hers, creating a glossy coating that collected by her tight pussy lips as her hungry cunt gripped hard onto the massive dildo. She reached the knot, pushing it harder and harder until it entered her, making her shudder in pleasure. She pulled it, causing the skin around her entrance to balloon out slightly, and then she pushed, eliciting a small squeal to part from her lips.

She lay there, pushing and pulling, panting ever harder as her orgasm began to build. I could tell by her stifled moans that she was close, and I watched, savouring every second, as her toes curled once again and she let out a louder moan.

“Mmm, yes, mmmmm,” she groaned as she began convulsing on the bed. Liquid seeped out from between her lips and the toy, and that was when I realised my sister was a squirter.

She calmed herself, toy still firmly wedged inside her, and I took the opportunity to lick the smaller discarded dildo. She tasted musky, with a slight sweetness that was incredibly moreish. I would have ordered that as an appetiser, especially if her pussy was the main course.

She finally opened her eyes, looking down at her stuffed snatch and grabbing the large toy's handle and pulling.

“Oh my god,” she whispered as the large toy plopped out of her now stretched hole, “I really need to get fucked.”

I smiled, willing to oblige but unwilling to reveal myself.

She lay back again, closing her eyes and slipping into a light sleep.

I took that as my opportunity to leave, pulling the door to as I snuck silently into the hallway.