Leo x Annabeth:
It was early in the morning and all campers where at the mess hall, all campers except two.
Leo was one of them, but he always arrived late and no one gave a second thought about his absence, he would show up eventually. The second person who wasn't there yet, was Annabeth. None of the campers at the mess hall knew, that Leo and Annabeth were together in the Hephaestus cabin and none of them knew what they were doing.
In the Hephaestus cabin the two campers were busy doing some pretty naughty stuff. Leo was standing beside his bed while the blond-haired girl kneeled in front of him. Both were naked and the son of Hephaestus had his hands buried in the girl's blonde curls. He gently guided her head back and forth as she sucked on his erected dick. Annabeth's warm tongue slid over his whole length as she moved to suck his dick. The female enjoyed the feeling of Leo's cock and moaned, her moan creating slight vibrations. The dark-haired boy groaned at the sensation and closed his eyes in a bliss.
Suddenly the cabin door opened and Percy stepped in. "Hey Leo, don't you want any breakfast? You were quite late and I thought…." the son of Poseidon said but stopped himself at the sight before him. Leo looked over to Percy and smirked, but Annabeth didn't stop her effort to make the boy in front of her come and continued to suck his hard cock. "Percy" the son of Hephaestus said between heavy moans. "Did you forget? We agreed that I would occupy Annabeth today while breakfast."
Remembering their conversation Percy nodded and said "Right… I forgot about that, I'm sorry bro." while his eyes were fixed on the kneeling blonde girl. "No problem, how about you go and check if Calypso is up to a little fun?" the naked boy said. Percy grinned, nodded and left the cabin without another word. Just as the door closed, Annabeth took him in completely with a last bob of her head and Leo couldn't hold himself any longer and came, shooting a big load of sticky cum down her throat. The horny demigoddess swallowed it all and moaned at the taste of it.
Leo stepped back and sat on the edge of the bed, his cock slid out of Annabeth's warm mouth as soon as he moved back. His shaft was covered in a mix of salvia and cum and he looked down to the daughter of Athena who was still eyeing him lustfully. "Come here!" the son of Hephaestus commanded and Annabeth did as she was told without hesitation. Percy had told her about his conversation with Leo, so she knew what the boy wanted from her. She crawled between his legs and stopped just before his erected cock. Annabeth straightened up a bit and placed his cock between her tits before pressing them together around it. She looked up and made eye contact with Leo while she started to slide them up and down, in which she succeeded easily as his dick was slippery and slimy from salvia and cum. Leo groaned at the feeling of the friction her boobs created. Annabeth worked with lots of enthusiasm and soon the fiery demigod was about to come. He told the blond-haired girl about it and she increased her efforts again, which brought him over the edge to another orgasm. Leo came and shot his cum directly on the female's chest. Annabeth slowly run her fingers through the milky liquid, collected some of it on them and licked it off. Leo loved it, he thought it was super dirty and erotic and decided to reward her for her good work.
He helped her up and let her sit on the edge of the bed before pushing her upper body back on the bed and spread her legs. As soon as her legs were opened for him, he could clearly see her arousal, as her pussy was wet and shiny - their previous sexual actions hadn't gone unnoticed by her body. Leo used his fingers to hold her pussy lips apart and started to lick and suck on her clit, which elicited her a moan almost instantly. While taking care of her clit with his tongue, he also started to slide a finger slowly in and out her cunt. Soon he added a second finger and increased the speed of his strokes. Annabeth arched her hips towards Leo, wanting as much as possible from him - she wanted more of his tongue on her and more of his fingers inside her.
After some time, Annabeth came and covered Leo's fingers with her pussy juice in the process. Encouraged by her orgasm and her reaction to his movements, Leo kept going and brought Annabeth two further climaxes before he cleaned her up with his tongue. After licking her cunt and his juice-covered hand clean the boy helped her up and they put their clothes back on.
Both were tired and hungry from their activities and would go to the mess hall to eat some breakfast before probably taking a nap in their cabins afterwards.