Matthew Chase x Annabeth:

Annabeth laid in her bed in her dad's house while thinking back to yesterday - she had been at the supermarket and suddenly felt an intense wave of lust and needed to relieve herself of this feelings. This was when she saw the black-haired boy who she had a quickie with, minutes later.

Thinking back, she felt herself getting wet and horny, she definitely needed someone to have sex with but was too lazy to walk to the supermarket again to find Matt - instead, she stood up and walked towards her half-brother's room.

When she came closer, the daughter of Athena heard a soft flapping sound and grinned, hoping her little half-brother Matthew was doing what she thought he was doing. Quietly she opened the door and slipped in, before closing and locking it behind her.

Annabeth grinned at what she saw, when she turned around from the locked door - her half-brother laid on his bed stark-naked and had his eyes closed while jerking off. "Hey Matthew." the girl said and the blond-haired boy jumped in surprise while trying to cover himself with the bed sheets. "Annie, what are you doing here?" he squeaked out while blushing furiously. "Oh, I was just passing your room and heard how you jerked off and decided to help you a little." the demigoddess said calmly.

"H- help me? H- how?" the younger boy stuttered confused while frowning a bit, his state and the fact that his half-sister had caught him masturbating completely forgotten for the moment. Annabeth grinned at his interest and replied "I am horny too right now. How about we help each other - how about you fuck me?".

At this Matthew's eyes widened and he observed his sister to see if she was serious or joking. As nothing made him think she wasn't honest with what she wanted, he grinned and said: "You got way too many clothes on to get fucked!".

Annabeth laughed and started to undress while keeping eye contact with her little half-brother. As she was down to her underwear his eyes left hers and watched hungrily how she removed her bra, leaving her boobs bare for him to see. After her bra fell down to the floor her panties where the last piece of fabric that covered her body, but they wouldn't stay long on her body as her hands already found their rim and started to pull them down.

As soon as Annabeth was naked, she made her way toward her brother who was still laying on his bed and had continued to jerk off while he had watched his older half-sister undress. The blond-haired girl climbed on the bed and crawled over to her brother's groin before removing his hand and swinging one leg over his hip, so she was positioned inches above his cock.

His hard rod rubbed against her moistened intimate part but didn't enter her correctly so she grabbed it with her daintily hand and guided the tip of his penis directly towards her moistened entrance before pushing herself down to take him in.

Both moaned out at the feeling and wanted a lot more of it, so the blond-haired boy started to thrust upwards and began to fuck his half-sister. "Oh gods, that's great!" Annabeth breathed out while Matthew penetrated her needy pussy and he grumbled in agreement unable to say anything else as he concentrated on his task.

The demigoddess was horny as fuck and it didn't take long until she came for the first time but before she could scream out, Matthew's hand covered her mouth and dampened the sound. "Do you want Dad to hear us?" he whispered but didn't stop his efforts to find relief.

'He is right!' Annabeth thought and bit down on her lip to cut off her screams. They continued to fuck quietly and without further words until Matthew felt ready to come "Annie, I need to come!" he breathed, telling her, so she could move back if she didn't want him to come inside of her. After a couple of seconds his half-sister hadn't moved and he took this as permission to shot his sweet cum inside her delicious, tight pussy and did so without further hesitation.

Afterwards, the two half-siblings stayed in their position until their climaxes ebbed down, connected at their most intimate areas. "Why did we only do this today for the first time? We should have done this years ago and do it every day if possible!" Annabeth's younger half-brother voiced his thoughts and made his sister laugh with his comment. "I definitely agree!" she said before pulling back which caused Matthew's dick to slid out of her.

The two had just finished in time to hear their dad call them for dinner. Annabeth would have been up to more and looked at her half-brother to check if he would want another round too. Obviously, seeing how he eyed her naked form he would gladly take another fuck and so she asked him: "Second round after dinner?" at which he nodded eagerly but told her that they would have to wait until bedtime because his twin brother Bobby would be hanging around right after dinner.

"Ok, then I'll come back after the others are in bed." Annabeth told her half-brother, at which he nodded and they got dressed quickly.

***** Time Skip - past bedtime and everybody besides Annabeth and Matthew is asleep *****

Annabeth quietly opened the door to Matthew's room and walked in, seeing him sitting on the edge of his bed, stroking his dick to make him hard. Once again horny and eager to continue their fun, the blond-haired girl undressed quickly and asked him how he wanted her and the young boy replied with only one word while standing up: "Doggy!".

The demigoddess nodded and positioned herself on her hands and knees at the edge the bed, so Matthew could stand behind her, in front of the bed and could take her from behind. As soon as she was in position she felt the hot tip of his erected cock on her pussy entrance and bit down on her bottom lip to prepare for the moans that would soon try to leave her mouth for sure.

The blond-haired boy pushed forward and his dick slid into his half-sister's quite wet and needy vagina, penetrating her deeply in the process. Without wasting too much time the young boy started to thrust his rod into her before retreating a bit just to force himself back in again. Both of them enjoyed their time together immensely and Annabeth had orgasm after orgasm before Matthew finally came into her cunt, just like he did the first time.

Both siblings breathed heavily but were still horny, so when Annabeth suggested another round, just as Matthew pulled his softening dick out of her cum-filled pussy, her half-brother couldn't do anything besides nodding and preparing his dick for another round of fucking his damn sexy older half-sister.

'God, I'm a lucky devil to have a sister like Annabeth!' the boy thought and started to tend to his, yet again, growing erection.

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