Jennifer bent over and buried her head into the pillow, eager to allow access to Mark’s cock again.
The twins had been having their incestuous fling for a few days now and, like all new lovers, they couldn’t get enough of each other.
Mark put the head of his large cock against the entrance of her soaking wet pussy, teasing her exquisitely, wanting her to beg him to fill her up.
Jennifer reached out for his throbbing member, aching at her very center for it, willing to do anything for him, as long as he would fuck her again and again.
They both knew what they were doing was wrong, but they simply couldn’t help themselves. Finally, they understood their closeness, which even went beyond that of twins, and they wanted to explore it as much as possible.
Mark continued to tease her with the head of his cock, before shoving two fingers into her, making her cum before he finally gave her what she wanted, gently edging the head of his engorged cock into her, making her gasp and groan out loud.
As his cock went deeper into her, Jennifer pushed back against him until his entire shaft was in her red hot pussy.
Once he was right in her, Mark started pumping in and out of her, harder and faster.
Jennifer raised her voice, saying, “Yes, fuck me, do it to me.”
They were both panting and grunting as their bodies raced towards their joint crescendo and the pleasure washed over both of them.
As Jennifer felt her release getting near, she started groaning, as her brother also started to climax. Consumed by their passion, they knew she could get pregnant but that seemed more like an afterthought, with the sanctity of the physical union, the overriding desire above all else.
They both reached their bone-shuddering climax at the same time and Mark’s sperm shot deep into Jennifer’s body as her juices flooded all around his cock. The pleasure took them to a new level they had never previously experienced.
After their mutual orgasm, they fell into a sweaty heap, holding each other, unwilling to extricate themselves, and soon fell into a deep sleep.
Mark was the first to wake up. The mess of his cum and his sister’s juices was soaking into the bed, but he still felt horny and he had another raging hard-on.
As his sister lay there, legs wide apart, he decided to wake her up in the best way possible, immediately putting his head between her legs and pushing his tongue into her vagina.
As he licked up the juices inside, his sister stirred slightly and emitted a long, contented groan.
Once she was awake, she grabbed hold of her brother’s head and pushed her most intimate part onto his face.
His cock kept growing until he could contain it no longer; he had to fuck her right there and then. He lifted her beautiful, smooth legs, catching her by surprise, and immediately thrust his cock deep inside her.
They both started shouting as Mark pounded her relentlessly, even more forcefully than before. Jennifer’s counter thrusts only heightened the desperation and intensity.
Finally, his warm semen flowed from him into his sister’s body, just before she also reached another back-arching climax.
They relaxed and talked about what they were doing and what could easily be the result of their actions, especially considering the frequency and intensity of it.
“I know you would be an excellent father. I do love you, and not just as a brother,” Jennifer said.
“I would like to be a father one day, but I never thought it would be my twin sister who would give birth to my child,” he replied.
Jennifer asked him, “Do you want us to try for a baby, or should we just enjoy the sex for what it is?”
“I don’t know, half of me is saying this is so wrong, but the other half is saying that you would be a fantastic, very caring mum, who I love very much.”
The thought that she could well be on the way to getting pregnant never even crossed their minds.
They stayed in bed the whole day, sometimes sleeping, ignoring the outside world, and mostly fucking each other to a standstill.
The siblings couldn’t stop themselves from having sex at every given opportunity, which was rather easy when they were both at home; nobody in their family or a large circle of friends guessed anything was going on, allowing them the normality of living together like a young couple.
Talk of having a baby went to the back of their minds, with both determined to enjoy their affair for what it was.
They had sex nearly every day and never held back. Jennifer didn’t develop any extra appetite and felt somewhat relieved when her period started, while also a little bit sad that she wasn’t pregnant. It was a few days later that she told Mark and his mood about it mirrored hers exactly.
Having discussed it, they both agreed it was probably for the best if she went on a contraceptive, but their desire for each other wouldn’t allow them to wait for more of their sweet, physical love.
Over the following weekend, they stayed at home, having sex in every room in their apartment. They fucked in every position they could think of, doggy style and missionary seemingly being the most enjoyable.
They fucked all night from when they got home on Friday, only stopping to order takeaway for their tea, before putting the food on each other’s sexual parts and eating off each other.
At this point, Jennifer became ever more lustful, inevitably going down to suck Mark’s cock and swallowing his sperm, before he went down on her vagina, once again tasting her sweet pussy juices.
Finally, Jennifer got on top of Mark and challenged him to deposit all the sperm he had left in him until it was dripping out of her vagina.
They fucked harder than ever before, until they both climaxed, his hot, sticky sperm flooding her sexual organs, bringing absolute relief and gratification.
There was a feeling that maybe over the weekend, they had taken a few too many risks, but only time would tell.
