A/N Hi guys! So, at the request of the reviewers, I am making this a collection of one-shots about their birthdays. They are all relate though, i guess. I will post the one-shots on the character's birthday, or if they don't have an official one, I'll just post it whenever. So, Leo technically doesn't have an official birthday, but i just found a picture online with some character birthdays, so I'll just go off that

Happy Birthday Leo!

Leo POV

Leo was feeling pretty good when he woke up. He had successfully found Ogygia and Calypso, fixed Festus, made it back to Camp Half-Blood, and it was his birthday. So yes, this was probably going to be the best birthday ever. He opened his eyes, expecting to see at least something out of the ordinary, but everything was as he left it when he went to sleep last night. Yawning, he got up and stretched his arms. Well, he thought, time to go see what the others did for me. He walked to the Big House where Calypso was staying, but she was still asleep, so he decided to go see his friends. He practically skipped all the way to the dining pavilion with a gigantic smile on his face. When he got to the pavilion though, his smile drooped a bit. All of his friends were acting like they normally did, and they looked like they didn't even know that it was his birthday.

"Hey guys!" Leo said excitedly as he walked up to them. "You know what day it is, right?"

"Um… Well, it's Tuesday…" Jason deadpanned, not really know where Leo was heading with this.

"No silly! It's a special day!" Leo chirped.

"Ooh! I know! It's give-Percy-candy day!" Percy suggested. Annabeth glared at him.

"No. We are never making that mistake ever again."

Leo waved his arms around. "Guys, it's my birthday!"

"It is?" Piper asked.

"I'm hurt. You forgot my birthday!"

"Well, you never really told us in the first place…" Annabeth trailed off.

"Oh. Well, you guys are going to have to find me the best birthday present ever later! Good luck. I'll be doing my thing." Leo skipped away. Two minutes later, Percy realized that Leo had taken his food.

~~oOo~~

Piper POV

Piper, Jason, Percy, and Annabeth were freaking out. Seriously, it was Leo's birthday, and they had absolutely nothing planned. Of course, they didn't exactly know that it was Leo's birthday, and they had thought that he was dead until a week ago, so it wasn't really their fault. But still. Their best friend's birthday was today, and they had all noticed the genuinely hurt look on Leo's face. Even Percy. They were all sitting in silence, thinking of a present for Leo, when Calypso walked into the dining pavilion.

"Good morning!" she chirped happily.

"It's not a good morning for us…" Jason muttered.

"Why not?" Calypso asked.

"Well, we didn't know that one of our best friend's birthday was today, so we had nothing planned." Annabeth explained.

"Oh. Happy birthday Piper!"

"It's not my birthday. It's Leo's"

"Oh… Really? He didn't tell me," Calypso stated.

"Yeah, well, he didn't tell any of us, so I guess he is really bad at telling people his birthday." Percy grumbled.

"So… what are you guys going to do then?" Calypso asked.

"That's what we're trying to figure out right now. Do you want to help?" Annabeth said.

"Sure!" Calypso sat down beside Piper.

"First of all, we should probably write down what he likes." Annabeth grabbed a napkin and gestured to Percy to give her Riptide. Piper, Jason, and Calypso watched in awe as Annabeth transformed the sword into a pen that could actually write.

"Well, we know he likes to build and tinker with things," Jason suggested, and Annabeth scribbled it onto the napkin.

"What else?" she asked.

"Me?" Calypso said hesitantly. Piper suddenly had an idea.

"Guys, I know what to give Leo!" she yelped.

~~oOo~~

Leo POV

After his kind of depressing breakfast, Leo set off the the Big house to see Calypso. When he got there though, Calypso was gone. Leo spotted Chiron on the porch.

"Hey, Chiron. Have you seen Calypso?" he asked the centaur.

"I think she went for a walk."

"Okay, thanks!" Leo sighed as he walked back to his cabin. His half-sister, Nyssa, was getting the rest of Cabin 9 ready for the day's activities.

"Hey Leo! We have archery practice in ten minutes. You ready?"

"Huh? Oh ya, sure. I'm ready." Leo followed the rest of Cabin 9 as they walked down to the archery range. Three misfired arrows and two Apollo kids in the infirmary later, Leo was excused from archery practice for the day. He walked to the Big House to find Calypso, but she still wasn't there. Leo was getting worried. Calypso had only been at camp for less than a week, and there were multiple dangerous places in and around the area. He spotted Piper coming out of the Aphrodite cabin, so he ran over to her.

"Hey Beauty Queen. Have you seen Calypso anywhere?" Piper must have not seen him coming, because she jumped when he spoke, dropping the box that she was carrying.

"Oh. Uh- Hi Leo! No, I -uh- haven't seen Calypso anywhere. I got to go now. Bye!" Piper stuttered before racing off. Leo was too worried about Calypso to think about Piper's odd behavior. He walked to Bunker 9 to check if Calypso was there, but was greeted with a note in golden ink telling him to go to the beach for his birthday present. Sighing, he decided to go see what his friends had gotten him, since he coulhdn't find Calypso anywhere. Maybe, he thought, she's with them at the beach.

When he got to the beach, he was slightly disappointed. He couldn't see Calypso anywhere. His friends were crowded around a giant cake, which was pretty impressive, considering it was only two in the afternoon, and they hadn't known about his birthday until that morning.

"Hey guys! Is this cake for me? You shouldn't have!" Leo squealed, trying to act excited.

"Oh, that's not even the best part," Piper said mischievously. "You wanna cut the cake?"

Leo took the knife Annabeth offered, and stepped up to the cake, when it exploded. The cake, not the knife. Leo screamed and jumped back. There standing where the cake once stood, was Calypso.

"Cally! I've been looking for you all day!" Calypso scowled.

"First of all, that was the point, and second of all, don't call me Cally."

"Okay, Cally" Leo smirked. "Hey, how did you guys fit Cally into a cake anyways?"

"We didn't. We used the Mist," Hazel stepped out from behind a tree.

"Oh my gods! Hazel! I haven't seen you in forever!" Leo squealed in a falsetto voice. Hazel rolled her eyes.

"You saw me last week." Leo opened his mouth to reply, but then stared in awe at something behind Hazel.

"How did you make a cake that big?!" He asked as a cake bigger than the one Calypso was pretending to be was rolled out.

"We have our ways," Piper said mysteriously.

"We also convinced Mr. D to help us." Annabeth added.

"Can we eat now? I'm hungry!" Percy whined. Annabeth playfully slapped his arm.

"You're always hungry," she complained as Leo cut into the cake. Later, after everyone had eaten their cake and had given Leo his presents, he and Calypso were sitting on the dock talking. Leo leaned in to kiss Calypso, but abruptly stopped halfway.

"Leo? What's wrong?" Calypso asked. Then she burst out laughing, having spotted the bird poo on Leo's head.

The End!

Sorry if Leo seemed a bit OOC. And if it felt really rushed. Anyways, review please. Sorry if there are any grammar mistakes, i wrote most of this last night, right before I went to sleep. Huh. I just read over this again and realized that in both Leo and Jason's birthday, their present's were people. I will try not to do that for the next few. See you on July 12! (Annabeth's birthday)

:)

~ Purplicouspolkadot