Those remaining three days were a festfuck. On Sunday we had a day out, only the two of us, almost like a couple - albeit avoiding any intimate contact in public, as there are eyes everywhere - and when we got home we dived directly into bed and fucked through the night. On Monday and Thursday, as I needed to go to work, Hellen was waiting for me, wearing full make-up and dressed in sexy clothes, when I arrived home. Her timid, eager to learn manners in bed were a huge turn-on, and I lost count of how many times I came inside her pussy and, finally, her mouth, after she offered that to me on Sunday, telling me that after having tasted my cum the night before she didn't find it too repulsive. She didn't drink it though, spitting it out in the bathroom sink.
She is a fast learner, and by Thursday night I didn't need to give her any instructions anymore, as she knew exactly what to do, and her faint, quiet moans and purrs when cumming got me crazy with lust and desire, making me want to fuck her all day long.
As everything that's good, however, those days passed rapidly, and soon it was already Thursday night. As always, we were on my bed fucking, my cock deeply buried inside her now accustomed and accepting pussy with her on top of me, when her phone rang. She stopped for a moment and looked at the phone and then at me, smiling, and stretched her body to get the phone without leaving my cock behind. She then restarted her movements over my cock, going slowly up and down and making her tits bounce, while answering:
"Hi, mom!"
My eyes grew larger and I almost fainted, but her voice was completely natural and casual. She put her finger over her lips, asking me to be silent, and continued to fuck me and to speak to Claudia at the same time:
"Then Granny is already walking normally? That's good! She is a strong woman, like you! Yes, my exams were OK... I didn't need to study that much in the end. Oh, Mark was wonderful as always, we had some fun together..."
She laughed silently, still bouncing over my cock, and I had no option but to laugh too but, taken by surprise, I ended up making some noise. She opened her eyes wide and repeated the gesture asking for silence before saying:
"No, no, I'm in the kitchen preparing a sandwich, I think it's some silly movie he is watching in the living room. Yes, yes, ok, I'll tell him. Well, I'll see you tomorrow then. Have a good night, mom! Bye!"
As soon as she hung up the phone, she accelerated her movements, her eyes rolling up in excitement, and said with her voice almost breaking from the lust:
"Mom... Told me to... To thank you properly for the company... So... So, I think I'll need to... To suck you again after we... After we finish this..."
And she came, and I came hard too, harder than I thought was possible, filling up the womb of my young stepdaughter with my juice.
***
I confess I was hugely worried about Claudia's return, as I didn't know how Hellen would react or how well she would fulfill her promise of being discreet and not being jealous of her mother, but she was wonderful! I was impressed, in fact, as I had never thought someone so shy and inexperienced could be so skilled in dissimulate things. She treated her mother, and myself too for all that matters, in the exact same way she did before, not giving a hint of what had happened. As she promised me, she turned into an understanding, discreet lover, giving me all she could when nobody was around but being her normal, teenage-girl and daughter-like self when anyone else was at home. From that weekend on we fucked regularly, at home when possible or at hotels when we managed to find the time and opportunity to do so, and she became very skilled in bed, although never losing the quiet, delicate manners that differentiate her from her mother's screams and bad words when excited.
One way or another, time passed again, and I believe it was six or seven months after that when a new development took place.
I was in the living room watching TV and Claudia, Hellen and Isabella were in their rooms, on the second floor of the house, probably sleeping. I knew that Olivia had gone to some party, as she left home wearing a shiny dress and looking as stunning as humanly possible, and at this point Hellen had already sneaked out of her bed and sucked my cock, smiling at me when I came inside her mouth and gulping everything down before going back to bed.
By then, and after a drink or two and a blowjob, I was a little sleepy, drooling on the couch, when I heard the door opening and the sound of high heels on the floor. Seconds after that, Olivia emerged from the hallway, fairly drunk and trying to balance herself, and looked at me with glazed eyes, smiling:
"Hey, Mark... You're still up?"
She laughed for no reason, the booze probably making everything funny, and I replied, waking up from my drowsiness with the sight of a stunning twenty-something dressed to kill.
"Oh, hi, Olivia... Yes, I was watching a movie. Are... Are you ok?"
She took some time to answer, looking at me as she was thinking about something, and eventually said:
"Oh, yes, I'm fine... Can I keep you company for a while?"
Her manners were strange. I thought with myself that it was probably the booze, as she was usually a reserved and discreet girl and now she seemed oddly flirty and provocative, but I didn't think much of it then.
"Sure, no problem! How was your night?"
She walked up to me and I thought she would sit down in another couch, as we have plenty, but she didn't. She came directly at me and sat by my side, in the three-seats couch where I was, immediately taking off her heels and complaining:
"It was ok but, oh, my feet hurt! You know, being sexy is not easy..."
Once more she laughed, and again I was surprised by the casual manner she said that, as we never had any intimacy. She was, in fact, the most distant and reserved of the three, and we had never talked about anything more personal, limiting our brief conversations to general topics. Confused, I remained silent, but it was impossible to not be excited when she crossed her legs over the couch, letting a generous portion of her slim, long legs exposed while touching her feet.
"God, it hurts... And I thought you were a gentleman..."
She looked at me again, her eyes clearly red from the drunkenness and a smile turning her face even prettier, and I replied, confused:
"What do you mean?"
