They watched the rest of the movie in silence.
Later that night a line of thunderstorms blew through with gusty winds and torrents of rain making a racket against the side of the house. Jack was in bed, still trying to get his head around what had happened when she snuck into his room. In the dim light he saw her as she shrugged her flimsy nighty to the floor and slid into the bed next to him. He was instantly hard. She was even more beautiful than he’d imagined.
As the weather outside raged, she once again had him in her mouth. He turned her around into a 69. As she swallowed Jack’s cock, he plunged his tongue into her wet pussy, tasting her copious juices as her thighs quivered against his cheeks. He continued fucking her mouth as he began to alternate between her slit and her clit and she moaned on his cock as she began a chain of orgasms that intensified as Jack sucked her engorged clitoris. She was rubbing her tits against him, her entire body shaking like the leaves blowing in the storm outside. Jack let out a moan of his own and arched his back as he fed her his spunk. He could hear her gulp his jizz down as one final maelstrom shook her to a resounding climax.
She dismounted him and turned around to cuddle against him. Encouraging him to fondle her sensitive tits, they basked in the afterglow, in post orgasmic bliss, until it was time for Hannah to get back to her room.
“Thanks, Jack.” she whispered to him as she kissed him on the lips. “I’m glad we got that out of our systems.”
“Yeah, I am too.” Jack replied.
But the next day, shortly after their parents left for work they found themselves at it again, and increasingly, instead of going to gym, they found secluded spots down by the lake where they could indulge in their new carnal obsession when the folks were around.
They’d settled into a pattern and no one was the wiser, and it was understood that there was an unspoken agreement about what they could and couldn’t do.
That was until about a month after their first time. They were in his bedroom that morning, as they usually were after their parents were gone. Hannah had gotten Jack nice and hard, and Jack was waiting to feel her mouth taking him in, but she’d stopped, which was unusual.
“Is everything okay, Hannah?” Jack enquired.
“Oh… yeah… um… it’s fine” She replied distractedly.
“C’mon, you have something on your mind, Sis.” He stated.
“It’s… nothing. Nevermind.” She said.
“No, you are never this hesitant.” He said.
“It just that I was thinking…” She trailed off.
“Spill. What is it?” He asked
“It wouldn’t be wrong if you… just put it in me. Just so I could see what it felt like. Not… fucking or anything.” She blurted out.
“I thought we agreed…” Jack started.
“No. Not fucking. Just putting it in for a few seconds. It wouldn’t be like, that bad, would it?” She pleaded.
Jack had to admit that she made an enticing case, and he’d been thinking along those same lines himself lately. So it was with a little more convincing and Hannah’s wide eyed supplication, that they decided it would be okay.
Hannah was naked and on her back with her legs spread open. Jack could see her pussy lips open slowly by themselves, moist and inviting, like time lapse of a flower opening. He was as hard as he’d ever been. Carefully he positioned his rod at her entrance, rubbing it against her labia. It felt incredible. Hannah looked expectantly into Jack’s eyes and rolled her hips slightly to automatically optimize his entry angle.
Jack pushed slowly feeling her open as he penetrated her. She was wet and hot. Simultaneously everything he’d ever anticipated and nothing like how he thought it would be.
“More…” Hannah said in a sultry voice.
Jack was a few inches inside her and pushed deeper encountering resistance.
“More…” Hannah entoned as she reached up and, hands on his hips, pulled her further inside of her. She peeped as she felt her hymen rupture. And then Jack slid another few inches inside her.
“More…” Hannah begged. The little pinch had given way to an overwhelming feeling of sexual bliss. “I want all of you inside me…” she added.
Jack felt his pubic bone press against her pussy. Things were melting together. Letting out an exhale, he looked down to see his cock buried inside Hannah’s quim. He had butterflies in his stomach and his head was swimming. He was balls deep in his little Sister. He could feel her thighs shaking against his hips as she let out a soft gasp.
“Are you okay, Hannah?” Jack asked concerned that he might have hurt her.
“I… just came, Jack.” She whispered, barely audible. “I never felt like that, before. It felt…different. Wonderful…”
Her eyes had a soft, otherworldly glow, and Jack held as still as possible, so mesmerized that he barely notice her hips rocking slightly with each breath. Her breasts swayed seductively, she was blushing deeply, still hanging on to his hips as her own worked a little harder. It felt sooooo good, she felt like she was going to cum again.
It dawned on Jack that she was starting to fuck his cock. But he was transfixed. “Sis, you’re fucking me!” He blurted out.
“Just… a… little… almost… there… again.” She groaned
Jack could feel her pussy flex and quiver. Her entire body was shaking and he could feel his cock flexing inside her. He barely noticed that his hips had taken up the rhythm of hers, he was so intent on her orgasm, that when it hit her full on, they had crossed the Rubicon. They were fucking in earnest, and it was perfect.
Her next orgasm was even more intense. Jack was pounding her as hard as he could, making her tits bounce wildly. Hannah gurgled something incoherent and then her pussy exploded, gushing her ejaculate all over the bed in a geyser of fulfillment. Neither of them had ever anticipated that sex could be this epic.
Hannah kept her legs wrapped around her Brothers athletic hips as he stroked his huge cock in and out of her. Increasing the pace she became aware of the familiar cues.
“I should probably pull…” Jack started breathlessly only to be cut off by Hannah.
“Don’t you dare pull out! I want you to cum inside me! I don’t care!” She blurted out as she renewed her leg lock on him. Jack lost it. The first shot of his seed sending Hannah over the edge again. She could feel it hot in her womb and began squirting uncontrollably in response.
They lay there, out of breath in each other’s arms. Listening to the birds outside, a lawn mower going somewhere on the next street. Tranquility. Peace. They kissed as lovers, having gifted each other their first time.
“You know, if we keep this up you might end up…” Jack started.
Hannah let her fingers find their way to her leaking pussy. It felt good. “I guess I should ask Mom if I could go on birth control.”
There was no debate about whether they’d do it again. It was a mutual decision that it would happen as often as they could arrange it. Hannah knew where she was in her cycle and chances were slim that anything would go wrong. Still, the risk that first week, made it that much hotter.
They made the case that since she’d be going to college in the fall, that it might not be a bad precaution to get her on birth control just in case. A couple weeks later the letter came from Jacks University announcing that Hannah had been accepted as well. Although she’d gotten into everyplace she applied to, it was with some relief on Jacks part when she announced to their parents that she wanted to go to school there.
Jack found a nice off campus apartment rental, having sold their parents on the idea that it would be cheaper for both of them, and Jack could “keep an eye on” Hannah. And so their life took on a new facet. Hannah kept her stuff in one bedroom to keep up appearances, but in reality they slept in each other’s arms every night.
College brought them closer than ever as lovers, and their sex life was amazing. Jack eventually graduated near the top of his class, and had taken a position with a company that he’d interned with Senior year. Hannah graduated with 4.0 cumulative, the next year, and immediately started working on getting her commercial real estate license.
They both enjoyed above average professional success, and led a quiet, but passionate private life. Everyone assumed that they were married, and they didn’t really try to correct anyone, because when it came down to it, they felt more than married.
For their parents they kept up the pretense that they were roommates and created tales and rumors of fictional boyfriends and girlfriends who were always coming and going. They felt a little bit bad about the deception, but it served as a good justification as to why they were still cohabitating.
Jack had come home from work to find Hannah waiting for him in the kitchen. Jack still would get butterflies when he’d see her dressed sexy, and she was sitting there wearing a lacy thong and teddy set that had him sporting wood instantaneously. The lights were low and there were two flutes of champagne on the table.
“What’s the occasion?” Jack asked grinning ear to ear.
“Let’s have a toast first, Jack.” Hannah said, handing him a glass. “Since this is the last alcohol I’ll be able to have for a while.” She added slyly.
“What are you talking about?” Jack looked at her questioningly.
“This, darling.” she went over the kitchen counter and returned with something which she handed to Jack.
“This looks like a pregnancy test.” Jack stated. “I don’t get it.”
“I went off birth control a while ago, honey. It was only a matter of time before you knocked me up.” Hannah said.
“Don’t you think we should have talked this over, before…this?” Jack said with surprise.
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