Part Five: A Secret Exposed

Chapter Three: Virgins of the world

Tai and Kari almost burst through the apartment door when they finally made it home. All the lights were off in the main living area and neither bothered to turn any of them on. While they had almost run back to the train station from the restaurant (they probably would actually have run had Kari not been wearing heels), the train ride to Odaiba had felt agonisingly slow. Each minute spent on the journey was one less they had alone in the empty apartment. They'd made a brief stop off at a store to pick up a packet of condoms and a bottle of lube, then hurried along on the last leg of their trip.

Making a b-line straight for Kari's bedroom, the couple had already wrapped themselves in each other's arms by the time they staggered over the threshold; Tai's foot closing the door behind them. Their lips met in a passionate kiss as shoes were haphazardly kicked off. In an explosion of primal desire, they tore one another's clothes off until Tai was left only in his socks and Kari her holdups.

Grabbing his girlfriend around the waist, Tai pressed her slender frame against his own. The sensation of her soft skin against his own was electrifying and served as the final jolt of stimulation required to get him fully hard. Guiding her over to the bed, he was about to lower her down, when in a flash, she spun him around and pushed him backwards. He fell towards the mattress as his eyes caught sight of the evil grin on her face. Before he even landed, she was bearing down on top of him.

Kari descended onto her boyfriend and found his lips with a furious kiss. Her tongue slipped into his mouth and she could taste the sherry-soaked fruit from his dessert as she explored every corner. She felt his hands, strong and firm, begin to rub her shoulders and she let out a moan of contentment. Her own began to snake their way down his muscular torso, giving his nipples a light flick on the way past.

Tai groaned when he felt her rub her body against his own, feeling her already damp crotch touch against his penis. His hands reached down and clenched her tight ass cheeks as he rocked her back and forth. He'd never felt more turned on in his life. Hands sliding from her ass and over her waist, he cupped her breasts lightly as he began to gently massage them.

A shudder of pleasure ran down Kari's spine when she felt fingers caress the soft flesh of her mounds. She let out a moan and in doing so, allowed her brother to take control of the kiss. Lightly she bucked her hips, feeling her boyfriend's solid penis between them. She'd fantasised for months about what it would feel like to have him inside her. For their bodies to combine as one in this most intimate of acts. The moment when she would finally find out was not far away.

Tai felt Kari break off their kiss and slide her body down his and then watched as she sensually brought herself up onto her knees. Her bright lit-match hair framed her face and she looked absolutely divine in the glow of the moonlight that shone through the window. Like a shining goddess, smouldering with passion… or a fiery demon, burning with desire. It did not matter which, he wanted them both.

Taking a much-needed breath, Kari reached over onto the bedside table, where somehow the box of condoms and bottle of lube had found themselves, ripped the former open and withdrew one. She looked down at her boyfriend and grinned. They'd agreed on the way home that it would be best for him to take control when it came time for actual penetration. However, until then she decided, this was her show. She turned around and straddled his chest. With a touch like a feather, she ran the fingers of her right hand up Tai's long shaft; it quivered.

With his girlfriend now atop his chest, Tai could only work with whatever was within the immediate reach of his hands. It was fortunate then, that he had rather long arms. Snaking his fingers up and around her sides, he found her breasts and began to pinch at her nipples. They immediately stiffened to a yelp of delight. "Urgh!" Kari moaned as he gripped both of her breasts in firm hands. As always, this brought a smile to his face. It was always a pleasure to hear her enjoy herself.

Under the influence of continual jolts of ecstasy, Kari almost lost control. Her body virtually turning to putty in her boyfriend's skilled hands. He could sculpt her any which way he desired if it felt this good. Through a rose-coloured haze that fogged her mind, she somehow managed to resist descending into a chasm of pure bliss and submitting herself to his whims. Her hand found his penis once more and she began to stroke it up and down. She felt his hold on her breasts release as he let out a loud moan.

At the feel of his girlfriend's firm grip on his shaft, Tai momentarily drowned in the wonderful nature of the sensation. The next time he was aware, Kari had shifted her ass backwards and lowered her back. Dangling above his face, he could see her dripping wet pussy. Like lightning had just shot up his spine, he felt her tongue run its way from the base of his shaft up to the tip. "AHHH!" he cried out when she began circling his tip, before taking it inside her warm mouth.

Kari slowly descended down atop her boyfriend's penis, only to let out a muffled gasp, as she felt his tongue poke between her labia and start to lick. Holy crap that felt good. She fought against the waves of pleasure to continue her own licking as Tai found her clit. For a minute or two, stifled moans filled the air as they sucked one another. In the end, she just managed to cobble together enough restraint to stop. Having to physically shuffle her pussy out with his reach. Tearing open the condom, she pinched the tip, placed it over the head of his penis and rolled it down in one fluid motion. She turned to face him.

"Ready," Kari asked through a panted breath.

"Ready," Tai nodded in response.

Their lips met in a passionate kiss as their arms wrapped around their already sweaty bodies. Taking control, Tai turned them around and lay his girlfriend down atop the bed. He stretched out a hand and picked up the bottle of lube. Popping the cap, he squeezed some into his hand and proceeded to first rub it all around his shaft and then around her opening. He slipped a finger inside, causing her to squeal.

"Hey, no fair!" Kari pouted, fighting back a moan.

"Just making sure you're open for business," Tai grinned back. When she spread her legs wide, he slid a second inside and gently fingerbanged her for a few moments. "This might hurt," he said as gently as one could when telling someone you might be about to cause them a lot of pain.

"I know," Kari replied. "Just don't stop because let I out the smallest of cries, ok. I'll tell you if I need you to stop."

"Ok," Tai nodded, having to beat back the ever-shrinking part of him that was her overprotective big brother. He was her boyfriend first and foremost now. If he were to slip back into old habits now, she would probably lose her shit at him. She'd made that quite clear the last time he had done so.

"Good. Now, shut up and kiss me."

Kari pulled Tai down atop her and their lips met. As their tongues danced with each other, Tai guided himself into position. For both of them, this was it. There would be no going back after this. For Kari, this was the culmination of a long and arduous journey that had started over two years ago. And for Tai, the ultimate realisation that he had found in his sister, everything that, for the longest time, he had never realised that he wanted.

As gently as he could, Tai slid his penis inside Kari's vagina.

Kari winced at the hot flash of pain that flooded her from her vagina. Involuntarily, her muscles tensed, her eyes screwed up and all she could do to stop herself from yelling at Tai to take it out was to dig her fingernails into his shoulders. For a moment she writhed in agony, unable to tell if her boyfriend was thrusting in or out. And just when she thought she could take it no more, the crimson mist that enveloped her mind slowly began to recede.

Tai's eyes were glued upon the look of agony that had smeared itself across his girlfriend's face from the moment he had entered her. For a split second, his resolve wavered and he almost pulled himself out. Only the promise that he had made to her moment's prior stayed his penis. Trying to be gentle, he pulled back and began to slowly thrust. He let out a wince of his own when he felt her nails lodge themselves in his shoulders. And even though he was sure one or two had broken through the skin, he knew the mild pain he felt did not compare with what Kari was experiencing. With difficulty, he began to work up a light rhythm, his soul torn in two. However, the longer he stared at her screwed-up features, the more she became his little sister. His resolve was mere seconds away from breaking when her eyes opened and she let out a moan, not of pain, but of pleasure.

Kari gazed into her boyfriend's chocolate eyes. She could see the conflict that brewed inside him. The fight between the two halves of his personality. Sometimes it was easy for her to forget that, compared to her, he only had a few months experience of feeling the love shared between lovers, rather than that between siblings. That, while she had easily been able to view him as boyfriend over brother, it had not been so simple for him. Time to remind him. Pulling her nails out of his shoulders, Kari grabbed the back of Tai's head and pulled him into a passionate kiss, as inside she felt pleasure wash away the pain.

For the first time, Tai became fully aware of the warmth of his girlfriend's tight walls around his penis. Internally, torment turned to relief and then quickly to desire as he felt the first flutter of pleasure. Urged on by Kari's moans, he began to thrust deeper. When he finally pushed his penis in all the way, she shrieked in delight and wrapped her legs around his lower back. Harder and faster he pumped, a stream of grunts and moans escaping his own mouth. This was like nothing he had ever experienced before.

Bodies colliding together, Tai and Kari could feel orgasms building quickly and after a few more thrusts, the couple screamed each other's names as pleasure exploded through them. Their bodies collectively tensed in sheer bliss for several moments before they flopped against the mattress. Panting for breath, neither was able to utter a word for several minutes.

That was until Kari managed to say, "Tai… get your heavy, sweaty butt off of me."

The sound of his girlfriend's voice jolted Tai back to reality; he'd almost dozed off. His eyes re-engaged and he could see the expression of mock irritation on her face. He gave her a dumb look.

"Tai, get off!" she reiterated, playfully shoving at his shoulders. "I can't get a proper breath with your dead weight crushing me."

"Oh," Tai replied, but still didn't move. "For a moment there I thought you were mad at me."

"I'll get mad at you if you don't move your heavy butt."

Tai hastily rolled against the wall as he apologised, "sorry, Kari."

Kari gratefully swallowed a few unrestricted breaths before she next spoke. "That was… intense."

He looked her in the eyes. "Yeah," he said and wrapped an arm around her.

She ran a hand over his muscular chest, "how did that feel?"

"Amazing," Tai replied. He then gave her a look of concern, "are you…"

Kari cut him off with a firm look, "I hope you're asking that as my boyfriend." She made him sweat for a moment or two, before giving him a smile. "It hurt like fuck at first, but once the pain subsided, it felt really good."

Tai felt a slight pang of guilt but did not let it show. In a way, this situation was probably good for him. If they were going to be together long term, he would need to cut loose the big brother part of him. They were a couple, boyfriend and girlfriend.

"Tai?"

"Yeah?"

"Stay with me awhile."

Even though their parents would be home in an hour or two, he could not say no to her. Reaching down, he pulled off the condom. Tying a knot in it, he tossed it onto Kari's nightstand. Lying down beside her, he pulled the duvet over them.

They cuddled together under the blankets, eyes closed, enjoying the warmth of being within each other's embrace. They fell asleep within half an hour.