Takashi and Yuria immersed themselves in their carnal desires through the night.
All rational thoughts left their minds, leaving behind only the primal need to satiate their lust.
Their moans of pleasure echoed through the house as they continued their sexual activities. Their bodies couldn't stop to seek each other for pleasure.
They continued their activities for hours, their hands incapable to release each other, their minds overloaded by the pleasure.
They couldn't be described as lovers having sex, but animals mating, seeking only sexual rapture.
After more than five hours of rough and passionate sex, they finally pass out from exhaustion in each others arms.
*
"Damn mom, that's so good"
Takashi was groaning as Yuria was sucking his dick while he was sitting on the couch, swirling her tongue around the neck. She bobbed her head up and down, taking the entire length of his big dick completely inside of her mouth.
She was deepthroating him without difficulty.
He couldn't but gasp at the pleasure Yuria was giving to him, stroking her blonde hair while she was swallowing his entire length side of her mouth. Yuria was taking her time sucking him, enjoying his expression of pleasure and the familiar taste of a cock in her mouth that she had almost forgotten after many years.
Anyone that looked at her would now that she was doing, making sure that he enjoyed her mouth without causing it to end too soon.
Yuria lift her head until only the head of his cock was inside of her mouth, and then she enveloped his thick veined shaft with her ample breasts, causing him to groan at the sudden different sensation on his slobbered dick.
"Mnmm... mhmn... Slmmp..."
Yuria moaned and slurped around the head of his dick, as she passionately sucked it. She was dominating his dick, using her tongue in right ways to tease and provoke him, making him come closer and closer to the heights of pleasure. She moved her breasts up and down in sync with her sucking, tightening his thick pole in a heaven of her soft and warm flesh.
"Gonna cum!"
As Takashi reached his limit, he warned Yuria of his release.
Yuria was drinking every drop of his semen without, not taking the head of his dick out of her mouth for one second. Takashi could see on her eyes a glimmer of happiness and pleasure, like she was tasting her favorite drink after a long time.
As his sperm continued to squirt in her mouth Yuria was rapidly receiving greats amounts of pleasure, enjoying that thick and warm substance in her mouth, until her orgasm burst forth.
'She really loves semen, doesn't she?'
She opened her mouth, liberating his cock's head, and swirled the semen that was still inside of her mouth, savoring the taste for a long time until finally she swallowed everything.
The image of his stepmom tasting his cum with such gusto, and the the way her eyes were shinning with utter delight filled Takashi with even more excitement than before, making his slightly deflated dick to harden again.
"...It's really impressive that you can still be this hard after hours of sex" said Yuria in amazement, with her eyes slightly widened in awe.
"I'm surprised as well" said Takashi with a dry laugh. His dick might still be hard but the rest of his body was drained of energy.
He had seriously underestimated the amount of sexual frustration that Yuria had accumulated.
"Hehehe, since you are so tired, how about I take charge for now?" asked Yuria. She didn't even let he answer before she started to straddle him, holding his shoulder with one hand and using the other to aim his dick to her dripping wet pussy.
Takashi didn't discussed with her about it, since he was the one in charge since they had woken up.
After the wild night they had, Takashi and Yuria slept for many hours, having awoke close the midday.
Once they were both awake Takashi expected that Yuria would be horrified, shocked or anything closely related to those emotions, considering that she had just spend the night in the arms of the boy that she raised for six years as her own son, not to mention that he was the apparently the boyfriend of her two daughters.
But to his surprise, Yuria was just concerned about what Rina and Anna would think of her in case they learned about what happened, leaving Takashi flabbergasted at her attitude. He manage to calm her by explaining that the sisters already knew of his interest on her, to which Yuria accepted with even more surprisingly ease.
They talked a little more, with Takashi revealing his harem situation and Yuria explaining the why of her behavior, and they continued to have sex non-stop after that.
Their conversation served to confirm the rough suspicion that Takashi had for Yuria's behavior. Different from her daughters, that Takashi manage to stop them before it was too late, Yuria had already walked on the path of debauchery, changing her way of seeing things forever.
Yurika might have heard rumors of the indecency that some members of high society engage in, but Yuria had actually participated in the past. From what Takashi remembered of her backstory in her hentai, Yuria had being a top model in the industry for many years, and combined with the few conversations with Yariko he had, he knew that position couldn't be obtained or maintained for a long time without being willing to do these kinds of activities.
Yuria avoided to talk about this in the past, probably trying to ingrain a normal common sense to her daughters and Takashi, but he could imagine that being used by more than one person of a family at the same time was one of the many things she did in the past.
The part of her that thought family members shouldn't engage in sexual activities was dead a long time ago.
The reason she was concerned about Takashi and the sisters when she discovered about their relationship was that she thought they were only lusting for each other. The families that she met in the past could only be described as warped, having their bonds being twisted because of their incestuous desires, and Yuria was worried that something similar was happening with the three of them.
But on that night when the three of them were simple watching TV in each others arms, Yuria could see that lust hadn't corrupted their bonds.
She could see that they genuine cared for each other.
That scene helped her heart to be more at ease, but also lit a small ember of jealousy on her. She couldn't remember the last time she felt something similar to what her daughters were experiencing right now, and it wasn't like she could force herself to be part of their little group. She feared the possibility of destroying the delicate balance of their family by following that desire of her, so she tried to bury those feeling of her as deep as possible.
Until the events of last night, and all of that was thrown out of the window.
Seeing how excited Yuria was, Takashi was looking forward for what she was about to do. He liked to be in control, but there was something oddly alluring about letting himself being dominated by a more experienced woman such as Yuria.
He could only imagine what she was still able to do.
They were about to continue their fuck session...
"Mom, Onii-chan, we are...!"
"Mom, Taka-chan, we are....!"
...when Anna and Rina arrived.
They were so engrossed in sex that they didn't noticed that it was almost night.
They were so excited that they forgot the couch they were was the first thing someone saw when entering the house.
The four of them remained frozen, completely caught by surprise about the current situation they found themselves into.
Until finally...
""WHAT THE HELL THE TWO OF YOU ARE DOING?!""
...the two sisters snapped out of their shocked state.
Seeing the tree of them, the sisters outraged and Yuria still a little shocked, Takashi could only sigh in exhaustion.
'This is going to be a long night'