Sana has been living and raising along her daughter Asa for years after the unexpected passing of her husband. After getting motivated to find another man to relive that feeling of love, she went on until she met you. Asa was then introduced to you, and since then until you and Sana got married, she developed personal interest at you... although not because of being her step-father but as a real man.

It’s been years since Sana’s husband passed away due to an accident. Their daughter, Asa was only 15 years old at that time. Because of their family’s man of the house’s unfortunate demise, he left his wife and daughter alone and survive daily by themselves; especially giving all of the responsibilities to Sana as a single parent.
At first, it took a toll on Sana on what happened to her husband. Asa witnessed it all how she would end up crying and lost in space, not sinking in the reality that she won’t see him forever. Ofcourse, it also affect her as the daughter and sole child; making her burst emotions whenever she’s away from her mother to see.
Then years has passed, because of her friends and her sweet beloved daughter, Sana has somehow learning to let go and accept her husband’s death. Her friends were also the mastermind of giving Sana the idea from their suggestion if she would want to meet another man again. Sana couldn’t answer immediately at first, but then admitted it afterwards since she is an affectionate person; she still misses how her husband treated her throughout their relationship.
Asa was also asked if she would like her mother to meet someone else to rekindle that feeling of being in love. She couldn’t answer as well right away, since it’s hard to imagine how it would be to live with another man than her father and treat him as the new replacement. Just like her mother, she gave it a thought and in the end she also agreed, as all she ever want is for her mother to be happy again and their family to be complete in honor of her father.
Sana then got set up into many blind dates, all were a miss for several reasons not until she met you. You were one year older than her, has a great physique that Sana really likes about men, and that matching attitude with your alluring appearance. You were the only one that received her contact number after the date, thus making you a winner to grab a chance on getting to know such wonderful woman like Minatozaki Sana.
Months went by and they became official. Asa was also introduced to you and it was a no shocker to her that her mother fell for you. Not just of a simple approval and understanding that you do possess a great quality of an ideal man, but also the fact that she based it on her own preference as well.
Asa repeatedly denies it to herself that she does find you very interesting not only because you are her mother’s boyfriend but something more as a man. She tries to look at you as her next father figure, but with the way you treat her like she’s not just some daughter you would have her to be, she finds it difficult to get along by.
Meanwhile, you and Sana’s relationship went on to take some daring path that was forced to discover when you learned Sana’s other side from being adorable to something seductive. She randomly does this to you whenever she feels like it and all of it were effective to you, instantly folding at the charms of this woman. That is until one day, it came to a point where Sana didn’t just tease you for fun any longer, she was the one to initiate for both of you to try it.
However, you refused. You told her that you want it instead once both of you got married. And when you two did, all of the pent up longing of Sana to have a man touch her body again was released, and the lust was irresistible.
After the honeymoon, Sana wanted more and more of you. Both would then have sex twice or thrice a week, mostly around the house or even at the public. Since they do this very frequent, it didn’t escaped from the point of view of their daughter who accidentally caught them both doing it without their knowledge.
Asa was about to grab some water from the fridge when she saw what’s happening on the living room. Her mother Sana has her legs spread open an dangling, laying down on the couch as you fucked her intensely. The skin slapping were loud, but then it went lower as you reduced the pace while your hands went on Sana’s neck.
The sight of her mother getting choked while getting fucked by you was a strange turn on to Asa. She has always wondered about your physique, even having wet dreams about you being naked. And there she was for her to finally see, her mouth gasped at your enormous size wrecking her mother’s pussy that left her hazy.
You grabbed Sana’s arms and tugged them at you, so that she would end up almost getting bent before you handled her body wrapped against yours. Arms supporting under her thighs, you carry-fucked Sana afterwards, bouncing her on the air with your strength and stamina both in use. Sana invites you on a French kiss while she moans at your mouth from the feeling of your cock ravaging her tight pussy while being lifted.
Asa wasn’t innocent anymore. She has seen some nsfw contents and few porn clips from her friends and even on the internet, but it's a rare occurence to view a man with a body like yours and a manhood that’s almost a size of a wrist both being utilized to fuck a girl to a frenzy. Just like from those videos she had watched, she went back to her bedroom and masturbated herself while listening to her parents fuck the night away.
The next morning, she woke up and to her slight surprise, her bottom is undressed. She remembered what happened last night and it made her blush. She then heard knocks from the door, it was her mother Sana calling her to wake up. “Sweetie, another day another school so get yourself up already.”
“Coming!!!” She shouted, and hurriedly picked up her pajamas to wear them. As she exits the bedroom, she saw you eating your breakfast as if nothing just happened earlier that made your daughter horny. “Good morning, sweetheart.”
“G-good morning.” She stuttered as she looked at you, smiling with fake innocence. She then joins you and Sana at the table. After that, she was escorted again by you on the car to drive her onto school.
During the drive, the silence between the two was awkward to Asa. Her still oblivious step-father was just focused on the road, vibing to his playlist. She wanted to observe you for longer, but when she does she couldn’t help by to avert her gaze down to your crotch and it made her halt when she saw a visible bulge on it. She gulped before deciding to avoid it by looking at the window to prevent any further recollection of your dick invading her mother’s vagina.
Hours later, she went home and helped her mother restock their storage with the groceries she just bought. You were nowhere to be found as you are now at your work, which gave a breath of relief for Asa. While she and her mother were supplying the products at their rightful places, Sana told something about Asa that seemed important.
“Honey, I will be gone for a week because if our business trip at Jeju. You will be guarded by your father while I’m away.”
“Does he know about this, mom?”
“Yup, and he is willing to monitor you for now.” Sana nodded. “So promise me that you will be a good girl and won’t cause any trouble for your dad, okay?”
“Okay.” Asa complied. She has to control herself starting now then, knowing that it will be only her and you this time, she doesn’t want to make anything seem suspicious. Distracting and preparing herself also, she tried to forget what happened that night by playing games and books, all so that her memory of you having sex with Sana could be blocked by what she’s doing.
The following day, Sana bid goodbye on you and Sana and gave her confident message that both will have “lots of fun” together. Her two beloved people in her life would have an opportunity now to get to know each other well, and it’s up to them on how they’re gonna use it.
When the door closed, you smiled at Asa and ruffled her hair. “So, missy. It’s just the two of us now. Wanna do something or… yknow anything in mind?”
Asa shook her head and returned the gesture. “None so far, dad. I’ll just gonna return to my room and do my assignments.”
“Great for ya to finish it early. Well then, I’ll just be here and watch NFL.” You excused yourself, leaving Asa eyeing you as you sat at the couch. Flashbacks suddenly starting to appear on Asa’s mind when she recognized the familiar spot. She then left you and did her daily priorities without any interruptions.
Afternoon came by, Asa exits her bedroom and was about to head onto the comfort room when she heard her father’s hums inside, signifying that he’s inside taking a shower. The water was turned off, and Asa moved to the kitchen to pretend that she wasn’t about to enter the same space. The door opened, you stepped out and Asa was greeted by your bare naked appearance, only covered by a towel.
“Oh hey, I didn’t saw you there” you said, making Asa speechless as she got caught. “Was just grab some snacks to eat.” she answered. As she pours the milk on the glass, she went staring at the visible outline of the bulge again on your crotch, “Oh my god, it looks long” she thought.
“Asa! The milk!” You yelled, making Asa snap back and realize that the milk had already overflowed the glass and is now pooling on the kitchen counter. “S-sorry, just thought of something.”
You nodded. “No worries, sweetheart. Just lemme know if you’re okay, got it?”
Asa only nodded again. As she finished wiping the counter, she returned back to the bedroom and smashed her face multiple times with the pillow frustratingly. “Why am I having these thoughts about him? Damn it, he’s my step-father now, I better stop this!” she muttered to herself before staring at the ceiling.
Little did she know, you also have been sharing the same impression to her. It has been a bit challenging to have her roaming around and not your wife being the one you see, especially that she really does share the same feature just like Sana. You would end up checking her out sometimes, whether when she just got out of bath with those wet flailing hair that makes her hot or those very revealing clothes that she wear to make her feel at home.
All you can do is to endure these and just count the remaining days before your wife comes back from her trip. That is, when one day; exactly four days before Sana’s return… something happened that both of you betrayed the boundaries to be respected in your relationship. It started when you were about to do some laundry but to your confusion, you found Asa bewilderedly turned around in front of the washing machine.
“Oh, you’re gonna wash your clothes as well?”
“N-no, I was just looking for something on my pockets.”
“Wanna help you with it? What was it look like?”
“No need! I’ll be fine. I’ll just… head upstairs.”
You watched her as Asa carefully distances herself from you, her hands were behind her. She was like waddling sideways closer to the stairs before she decided to climb up. However, something happened that made her pause from her steps, and both of you were speechless at what it caused.
You found your used underwear fall from Asa’s short. Asa didn’t noticed that the waistband of her short wasn’t that much tight to hold your underwear behind her. She shut her eyes, knowing she screwed up at what she did.
“W-what is this? Why do you have my briefs, Asa?”
She didn’t reply. Instead, she rushed away. You tried to chase her and grab your underwear on the stairs. She was about to close her room’s door but you stopped it with your hand.
“What’s the meaning of this?!”
“Get out!!!”
“I won’t go away unless you tell me what were doing to this! Why do you have this with you, Asa?”
Asa couldn’t reply, and she bowed her head in embarrassment.
“I won’t be mad, just be honest with me.”
You kneeled in front of her and tried to look at her face. “Your mother won’t know about this, if that’s what you fear for.”
“You s-sure?”
You hummed. “Was it something you can’t tell… maybe, feel?”
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