"Sean, you do realise you'll most likely be cleaning up any mess, right?" Jess couldn't help but laugh at the younger Hotchner brother's idea of the ultimate prank.

"I don't care, this will be so worth it Jess. You at least are watching right?"

"Wouldn't miss the chance of Aaron half killing you, Sean….."

That evening Aaron bought Derek and the team's newest profiler Luke Alvez round for dinner and to meet Jack, Sean and Jess. Sean instantly became good friends with his brother's newest team member and he, Luke and Morgan were talking after dinner and Sean told them of the prank he was planning on playing on his brother whilst Jack was at a sleepover that weekend and the team would be home. Morgan and Luke wanted to not only watch but join in so much that Sean got Aaron to invite them both to stay for the weekend.

That Saturday, with Jess filming on her cell phone, the four had gotten up extra early and were ready. Morgan was carrying a bucket of water and Sean and Luke were both carrying big bowls of flour. Aaron was still sleeping in his bed as the three men crept in with Jess behind. Morgan tipped the bucket of water over his sleeping unit chief and the second Aaron sat up in bed, Sean and Luke poured the flour all over him. The three men couldn't help but burst out laughing as a furious Aaron jumped out of bed soaking wet and covered in flour from head to toe. He was ready to kill his brother and launched himself at Sean. Morgan and Luke made a very quick escape.

"SEAN! What the hell?"

Even though his brother got him to the floor, for Sean, it was all worth it.

Aaron, fuming, got to his feet.

"Your cleaning all this up, and cleaning my bathroom Sean. Then we are seriously talking!"

"Morning bro. I don't care about cleaning up. This was all worth it. Jess, send it to the others….."

"Already sent Sean….."

Aaron looked and saw in horror, Jess holding her cell phone.

Meanwhile Dave, Matt, Spencer, Garcia, J.J, Kate, Stephen, and even Morgan and Luke all got the video sent to their cell phones. With the exception of Luke and Morgan, all the team were woken at half five to their cell phones receiving a message. They opened up the video and couldn't help laughing as they watched Sean, Luke and Morgan wake the unit chief up and saw him stand there dripping wet and covered in flour.

Aaron knew he would never live this down. J.J and Kate showed the video to their husbands, who both couldn't help but burst out laughing.

Aaron was determined to get not only his brother back big time but Morgan, Luke and Jess as he grabbed some clothes and stormed into his bathroom. It took him ages to get clean in the shower and it took Sean, with Morgan and Luke helping him, all day to clean up Aaron's bedroom and bathroom. They managed to dry out the mattress on the bed before the night.

Aaron would never normally think to stoop so low but he was so furious with his brother that he figured Sean deserved the revenge. The next morning, taking his son's slingshot from Jack's room, with Sean still sleeping in his bed, he crept into Sean's room, stepping over the sleeping Luke on the pull out next to Sean's bed. Luckily for him, Sean was sleeping on his side facing Aaron, who pulled back the comforter, aimed the slingshot and shot a plastic ball hard into Sean's crotch, instantly waking the guy up. Sean screamed in pain and grabbed his crotch before seeing his brother standing there smiling and holding Jack's slingshot. A tumble of swear words came out of Sean's mouth but he couldn't get up because of the pain between his legs as he lay curled up cradling his painful crotch. Luke instantly woke up to see the scene and instantly felt the pain Sean was feeling. The shouting from Sean bought Jess and Morgan running into the room only to see the same sight Luke was looking at. Morgan cringed, feeling Sean's pain.

"That was some low blow Aaron. What the hell?" Sean was fuming and wanted to kill his brother.

"Your morning wake up call, brother of mine, for yesterday. And Morgan, Luke, Jess, don't think I won't be exacting revenge on the both of you, you just don't know when and where." Aaron glared at the three others as he left the room. Sean, who Aaron had not spoken to the whole of the day before after the wake up prank with water and flour, didn't speak to his brother all that Sunday. Whilst they both knew they'd make up before the week was over, that weekend they were at serious war with each other. The two brothers were only just about speaking to each other when they needed to by the time Jack returned from his weekend sleepover that evening, not having any idea of what had been going on at the apartment that whole weekend.

Halfway through the week, the team was on their way home from a case in LA. Aaron decided to get some revenge on the two profilers. He'd already had to face walking into the BAU and facing his team that Monday with everyone of them helplessly laughing, remembering the video. Dave had shown him the video and even Aaron had to admit he found it funny, even though it had been him in the video. But it still made him cringe badly. He made his whole team swear and promise to not show the video to anyone outside the BAU family. He would have just had them promise no one outside the team but not only had Stephen, Will and Chris seen it but Morgan had sent it to one of his sisters to show his mom and his other sister. Dave had shown it to Hayden, and sent it to his daughter Joy to show to his son in law, Shawn, but Spencer had sent it to former team member Alex and both she and her husband had seen it. It was definitely making it's way around the entire BAU family.

Morgan had been listening to his iPod on his headphones and had fallen asleep when Aaron crept up with a bowl of warm water. Dave and Luke were both still awake as Aaron managed to dangle the fingers of Morgan's right hand in the bowl of water until it had had it's intended effect. Morgan only shot awake after everything had finished to see Aaron standing there with a bowl of water. He was sitting in soaked boxers and jeans and a pool of urine. The jet did smell like a men's room by then but even Aaron didn't care.

"What the hell, Hotch?"

"Payback is sweet isn't it Morgan?"

Morgan's shouting woke everyone else on the jet up. He was fuming as he jumped up, grabbed his go bag and half ran into the jet restroom. He couldn't clean up until he got home so, even after he'd managed to dry himself off and change clothes, he still stank of piss for the rest of the flight home. Aaron was already planning on ordering jet cleaning when they got home.

When he arrived home late that night, Sean and Jess saw him with a huge smirk on his face. When he told them what he'd done, neither Jess nor Sean could believe it. The unit chief had made the team's tough muscle man wet himself in his sleep just for revenge!

Aaron still had to get revenge on his sister in law and his newest profiler but was waiting for opportunities when they were clearly least expecting it.

He decided to take up a prank that had already been played on himself and Morgan. He invited Luke into his office to talk, having already spiked Luke's coffee with laxatives he'd gotten from Jess, who agreed to help her brother in law in return for forgiveness and no revenge on her.

An hour after he'd been talking to his unit chief in Aaron's office, with Aaron watching from his office window, Luke grabbed his stomach, jumped up and ran out of the bullpen to the men's room. He spent the rest of the day either running to the men's room or being in the men's room for long periods. At least he managed to risk rushing home at the end of the day but, after taking the next day off sick, when Luke finally came back in the day after, he'd found out it was his unit chief who'd laced his coffee and made him suffer with laxatives.

Aaron was happy he'd managed to get revenge on all three men without them having expected it.

Morgan and Luke had both learned a lesson whilst Sean had also learned the lesson. Never make Aaron Hotchner that angry again without serious payback…