Amelia released a slight cry of surprise as Alex's cock penetrated her from behind, making her feel an increasing sensation of fullness as Alex kept sinking his cock into her pussy.
"Mmm, you are so tight~" murmured Alex in Amelia's ear as he felt her inner muscles tightening around his cock.
Alex's hot breath on her ear coupled with the sensation of his cock deeply lodged in her cave aroused Amelia and brought out her aggressive side.
She glanced back at Alex and replied, "then fuck my tight pussy brother"
"As you wish" said Alex before starting to move in and out of her pussy.
"Yes, like, mmh that~" said Amelia with a lustful her ass, she felt her brother once again pounding her pussy.
Alex then used his hand to turn her face further toward him and tasted her lips while starting to increase his thrust speed.
Amelia kissed him back with the same intensity and aggressiveness.
Instinctually, Amelia also started moving her hips back each time Alex pounded into her pussy.
At first, the way she moved her hips was messy, but before long she synchronized her movements with those of Alex and pushed back her hips the exact moment his cock was going in her pussy, causing her round ass to ripples each time their bodies met and sounds of meat hitting against meat to echoes in the room.
A moment later, they distanced their faces from each other to breathe, but still didn't stop their bodies motion.
AAAA, AN, AHMM~
As their intercourse continued, Amelia's moans started getting louder, so she burrowed her face in a pillow to try and muffle her moans.
Meanwhile, Alex placed his clenched fists on the bed for support and then started drilling in her pussy with powerful thrust when he felt that Amelia was nearing her climax due to her pussy clenching him even further.
Feeling his own climax coming, Alex became more aggressive and started fucking her with increased intensity.
Amelia also could feel her brother nearing his orgasm as his cock kept pulsing each time it went inside of her.
A few seconds later, she started to feel a fire pooling low in her abdomen and after a few thrusts from Alex, she released a loud moan that even the pillow struggled to contain and came.
Amelia's moans as she came brought Alex over the edge and after one final powerful thrust he grunted and ejaculated right in his sister womb, again.
After he finished cumming, he slumped onto his sister's back before slowly rolling over, lying on his back, and trying to catch his breath.
"You filled me to the brim" said Amelia some moments later with a smile on her face.
"Umm about that, I hope it was a safe day, right" Asked Alex while scratching his head.
"What? You don't want to have a child with me" replied Amelia with a pout.
Alex gave her a kiss on her forehead and said "it's not because of that, but you are my sister, the kid might suffer from congenital conditions, so I want to make sure that our child won't suffer from anything before we can have one".
Amelia squinted her eyes and looked at him like considering if what he said was the truth, or he was just spouting nonsense, but seeing his loving gaze she finally nodded her head while saying:
"Okay, but the moment we find a method that could guarantee that our child will be safe, we will have one, I want a child!" Exclaimed Amelia in a serious tone that sounded quite cute to Alex.
"I promise" replied with a chuckle.
He then closed his eyes to rest a little, but then he felt a weight on him and opened his eyes to find Amelia grinning at him as she sat on his cock.
"I have been waiting for this for nearly 20 years, you didn't think that we were done with just two rounds, right?" Said Amelia as she positioned Alex's cock at her cave entrance.
"No, I was just going to give you some time to rest, but if you don't want, we can continue right away" replied Alex.
"Good because we are continuing" said Amelia before impaling herself on Alex's cock while releasing a lewd moan.
She didn't move for a while, letting the two of them enjoy the feeling of being one again before finally starting to move up and down.
Alex released a soft moan of pleasure as he felt his sister's inner walls squeeze him each time she went up and down.
As seconds ticked by, Amelia movements started to get faster as she rode her brother's cock.
The sight of his sister's bouncing breasts as she fucked herself using his cock caused Alex's arousal to skyrocket, making him grip Amelia's soft thighs with his hands and started increasing her speed.
Quickly, lewd moans and clapping sounds filled the room as brother and sister indulged in their carnal desire, letting their forbidden love bloom, and such was the case for the next two days.