"Percy, I'm going to kill you."

"What? Why? What'd I do this time?" Annabeth glared at her husband, holding up a white stick he was pretty much familiar with now. He cracked a wide, excited grin, but then tried for contrite at his wife's murderous glare. "It was an accident?" He offered.

"Where are we going to put another baby?" She demanded hotly. Percy detached himself from Max and Tobias and got up. He thought she had been acting funny lately, mood swings, but he had put it down to that time of the month. No wonder why he suffered for longer than usual.

"We'll think of something." He assured, wrapping his wife in a hug. She resisted for a full minute before her will crumbled and she hugged him back. "Hey, do you reckon we can get four in a row?"

"I'll go mad if it's another boy." Annabeth grumbled into his shoulder, feeling a chuckle rumble in his chest.

"You love us really."

"Mam…" Tobias suddenly appeared between them, loosening the hug. "Another baby?" He quizzed, frowning up at them.

"Yeah…"

"Where?" He looked around, his frown deepening in confusion. Annabeth and Percy laughed, gaining his even more confused attention. Max had toddled over as well, leaving Alvie to sit and arrange the car toys in a line of largest to smallest. "Is baby here yet?" Tobias asked eagerly, his confusion dissipating. When they had told him they were expecting Max, he was so excited to be a 'big brother' and he was going to be 'the best big brother ever'. He was still sticking to that rule, even if Alvie wasn't the easiest child to get along with. It wasn't his fault.

Tobias stared at Annabeth, tilting his head to the side. "Does baby come from your tummy again?"

"Yes." Annabeth smiled, ignoring her husband's snicker. "Like Max and Alvie did."

"Oh!" Tobias's confusion eased completely. "So… when will baby be here?" He pointed at the ground. "Soon?"

"A couple of months."

"Couple?" Percy visibly blanched, making it Annabeth's turn to snicker.

"I'm about four months gone."

"And you didn't notice because…" She hit his shoulder and glared at him. "Oh, that's why." He said thickly, massaging his injured shoulder. "Picking on your poor husband as usual."

"Don't make me hurt you."

"You already have." Percy looked at her with those sea green eyes, acting out the wounded and cornered animal look. Annabeth folded her arms and stubbornly refused to relent. Percy gave up after a minute or so, sulking to the amusement of his sons. "How come you didn't notice before? You don't look pregnant."

"Thanks. And I don't know. Too busy picking on you apparently." He stuck his tongue out childishly, pointedly tending his shoulder again. "Very mature, Jackson."

"Yup." He agreed, grinning. He looked down at his sons. "Blue ice-cream?" He offered. Their small faces lit up in agreement and they nodded enthusiastically, bouncing after their father as he dashed to the kitchen to escape his wife.

Annabeth didn't even bother killing her husband. She needed a punching bag for the years to come and loyal ones were hard to find.

Instead, she decided to go and book a baby scan for as soon as possible to know whether or not the boys would get an addition or if she would finally get somebody on her team.

Over the course of the next week, until the baby scan, Tobias insisted helping his father rearrange his and Max's room and Alvie's room. They moved Alvie's stuff into the boys' room and proceeded to clean the newly spare room from top to bottom. Annabeth wasn't allowed to help at all, so she sat with Max and Alvie to draw up a list of baby names and things they would need to get.

"Alvie, what do you think? Boy or girl?" Alvie stared at her, repeating her question silently to himself, his lips moving soundlessly.

He shook his head and went back to frowning at the baby catalogue. He was small for his age, looking more like a four year old than a nearly-six year old. He was so unlike his older brothers and not just because he was autistic. He preferred reading to causing havoc, something that sat well with Annabeth. She did worry about him though- he was too shy and quiet, whereas his brothers were loud, annoying and boisterous.

"Dad, you're all blue!" Max laughed. Annabeth curiously looked round. Percy was walking towards them, splattered with blue paint from head to toe with Tobias, equally paint-splattered and giggling insanely, slung over his shoulder.

"This one," He said, setting Tobias done in front of her, "Has not had his ADHD stuff."

"I don't want it!" Tobias protested childishly, running and jumping circles around them. Percy had to grab him to hold him still. Tobias found this highly amusing.

"Tobias!" Annabeth jumped up and grabbed his wrists, pulling him down and kneeling in front of him. She stared him in the eye fiercely and he stared right back, looking as gormless as his father sometimes did. "Behave or you won't get to redecorate. And why blue?" She frowned up at her husband. "We don't even know what it is yet."

"Blue's an amazing colour. Don't complain."

"You'll have to repaint it if it's a girl."

"What? Pink?" He stared at her as if she had finally cracked.

"No, not necessarily pink. Yellow and purple maybe."

"Orange and purple!" He grinned. "Like the camps!" Annabeth rolled her eyes.

"Let's find out what it is first before we finishing decorating. I thought you were cleaning up anyway?"

"So did I, but this one," He gently nudged Tobias with his foot, "Found a pot of blue paint and thought it'd be a good idea to start painting."

"You or the walls?"

"And himself." Percy smiled lopsidedly. He pulled Tobias to his feet. "Come on, up."

"No!" Tobias fought against him, twisting and turning while laughing maniacally.

"Tobias…" Annabeth warned. Tobias froze and Percy successfully managed to drag him away to get cleaned up and, hopefully, to have his ADHD stuff.

Sighing, Annabeth collapsed in her seat, Max on one side and Alvie on the other.

"Mam, you OK?" Max asked kindly.

"Your brother is going to be the death of my sanity." Max laughed, biting his lip to stifle it at his mother's pointed look.

Alvie, Max and Tobias- who had been forced to have his ADHD medication- were sat at the side of the room. They had to be quiet or now McDonalds. They were only sat to the side as Percy didn't want them outside and out of sight. Max and Tobias were known to aggravate pretty much everybody.

"What is it?" Tobias hissed.

"We don't know yet."

"When will we know?"

"In a minute. We have to wait for the nurse to come back."

"How long is that going to take?"

"Aren't you supposed to be quiet?" Percy countered lightly. Tobias pressed his lips together and slouched in his chair, drumming his fingers on the underside of the seat. His medication hadn't fully kicked in just yet, Percy reminded himself.

The nurse returned and set about organizing the baby scan. Max and Tobias looked confused, yet interested while Alvie was staring at the lights.

"All yours?" The nurse smiled, nodding at the boys.

"Yeah."

"Look just like their father."

"Why thank you."

"Shut up, Seaweed Brain." Annabeth mumbled, distracted by the monitor. The nurse set the ultrasound scanner gently against her slightly swollen stomach, rippling the cold gel. Max nudged Alvie and then they were all staring at the screen as interestedly as their parents.

"Baby's fine." The nurse assured. She was silent for a couple of seconds. "Do you want to know what it is?" They all nodded eagerly and her smile brightened. She glanced back at the monitor, the scanner crossing Annabeth's stomach. The steady beat of the baby's heart filled the room. "It's a girl."

"Oh my gods, thank you." Annabeth literally collapsed against the pillows in relief. She loved her boys to pieces, but gods they were tiring and outnumbered her easily.

The nurse beamed while Percy tried to muffle his laughter in his free hand, but he reached a hysterical tempo of laughter and he suddenly couldn't stop. Annabeth hit him, which was enough of a warning for him to get himself under control, but his fit of laughter was setting Tobias off and that was never good.

They all watched Percy expectantly. It took him a few minutes to calm down.

"OK, I'm good."

"Sure?" He snickered again, bowing his head. "He's not normally this crazy." Annabeth told the nurse, gratefully accepting the tissue to clean her stomach while the nurse printed off two scan photos and smiled amusedly at Percy.

"Right, right…" Percy sighed, smiling broadly. "I'm good this time, seriously."

"You better be or I'll kill you." His smile broadened.

"Of course you will."

OK, not much of a first chapter, but it's a start!

What do we think?