Click....
Along with the sound of the door being opened, Anna who felt like she was already on the edge could no longer resist it.
Letting go of her mouth and instead using them to hug Felix's head, Anna kissed him on the lips and let her moan out inside his mouth while the mouth down there drowned the dick inside it with myriad juices at the same time.
This was around the same time that Felix who until now felt like he was a watching a movie through his eyes regained control of his body.
Though he didn't know why he wasn't able to move his body as he wanted to, Felix for some reason was sure that what happened was a one-time thing and wouldn't happen again.
But now was not the time for such thoughts.
With his dick deep inside Anna and both of their mouths sicking on each others', Felix's eyes were looking at the door which was very slowly being opened.
Having inscribed the True Dragon Rune which gave him a Dragon's Soul by increasing his previous soul by over five times in size, Felix could easily tell that it was his stepmother on the other side of the door.
And once she opened the door.... Fuck!
Just the thought of being caught by a woman while he was having sex with her sister filled Felix with both fear and unbelievable pride along with incomparable excitement.
Due to all of this, even though the door wasn't opened beyond a certain level, Felix who was having sex for the first time could no longer hold back.
Squeezing Anna's breasts even more tightly, Felix thrust so deep that his entire rod went inside Anna. His balls touching the other hole of Anna, while the head of his dick broke inside her womb after having struck the entrance to it so many times until now.
Trembling uncontrollably not just due to Felix's dick going so unbelievably deep inside her, but also due to how it felt when her butt hole was slapped by the two balls hanging below the boy's dick, Anna was now sure that this was it.
As long as Felix ended up shooting his semen straight down her womb, she was genuinely ruined for all men.
This was also when she realised that all those thoughts she had concerning a man's dick and telling to herself that the size didn't matter was all crap.
After all, she could clearly feel how much her pussy was craving Felix's dick every time it went out of it.
Just the way her innards were being stretched to limit and stopping right before she felt like they would tear by the girth of the dick while the tip of it due to the length went so deep that she was ruined for other men, Anna could proudly declare to everyone that the size of a man's dick mattered!
And even more proudly say that her nephew had the best fucking cock in the entire world!
At the same time, as if having heard her words Felix let out his eagerly waiting semen straight inside her womb causing Anna's orgasm to further extend while her pearl-like green eyes completely rolled back.
"Is it Felix who's bathing so early in the morning? I wonder if he's alright. He didn't even have dinner with us last night."
Hesitating for a moment after seeing Felix's clothes in front of the door, Felix's stepmother chose to close the door and walked away from there.
"Sigh.... Due to the business I haven't even had the time to properly care for my own son. I'll definitely have to take some time and talk to him. Who knows how lonely the poor kid is these days."
Talking to herself as she went back, the woman was utterly oblivious to the fact that Felix had heard every single one of her words.
The situation however unfortunately didn't let Felix take his tike and ponder about those words.
All because even when he was acting purely based on his instincts, the Great Yang Dual Cultivation Technique seemed to have turned on by itself due to which Astral Force from him went inside Anna and he took her Astral Force.
Praising the technique which he had underestimated, Felix who had already cummed inside Anna and made her feel as if he was branding her due to how hot his semen was, didn't pull his dick outside of her.
After all, the longer it remained inside her, the longer the exchange of Astral Force between him and Anna would take place.
And considering how he was on the verge of breaking through into Tier 3, Felix ignored the fact that Anna looked like she was about to faint from pleasure and kept his dick inside her.
Like this, within the next few minutes Felix managed to obtain enough Astral Force to fill his soul to the brim with it and effortlessly became a Tier 3 Astral Cultivator.
As for Anna, she woke up around the same time that Felix's soul grew in size and set the limit of what was needed for him to fill if he wanted to become a Tier 4 Astral Cultivator.
The reason behind such a quick and near unbelievable cultivation speed was not only due to the Great Yang Dual Cultivation Technique which Felix trained in, and his Dragon like existence which was naturally inclined towards dual cultivation.
The most important reason was because Felix while not inscribing his Astral Rune had stayed at the peak of Tier 2 for more than an entire year due to which he could effortlessly breakthrough.
But of course, you couldn't forget about the contribution of Anna who as a Tier 5 Astral Cultivator made in providing Felix with all the Astral Force he might need.