Title: Home Is Where The Heart Is.
Fandom: CSI/Numb3rs.
Pairing: Don/Charlie.
Author: Aiden.
Chapters: (3/?)
Ratings: FRT 13.
Warnings: Fluff, incest.
Summary: Don getting all possessive of his mate.
Beta: SRS/Silvia *hugs* Thanks a bunches for all the help.
Author's note: This is not for Amita lovers, but I'm sure a lot of you don't have a problem with that. I just don't like her she needs to stay away from Charlie.

Entering CalSci, Don went in search of his mate; he had some exciting news. Walking down the long hallway, he entered his brother's office.

"Charlie?" He called out.

"Good morning, Don," Larry said from his position at Charlie's whiteboard, waving distractedly at Don. "Charles isn't here at the moment."

"Hey, Larry," Don said, disappointed that his mate was not there.

Turning back to Don, he noticed the other man's earlier excitement. "You look happy."

"Oh, yeah, I got the job," Don explained to his friend. The first time he'd met Larry, he had thought that Charlie's friend and mentor was a little weird, not sure if he was trust-worthy. After a while, Don and Larry had become good friends, and he'd been grateful to Larry for taking Charlie under his wing when he had attended CalSci.

"I'm pleased for you," Larry said, smiling at Don.

Don grinned, his earlier good humor restored. "Thanks, Larry. So, where's my brother?"

Larry checked his watch. "If I'm not mistaken, he is almost finished with his class."

"Good, I can't wait to tell him," Don said happily.

"Tell me what?" Charlie asked as he walked into his office. After dropping his bag and books on his desk, he approached Don and put a brotherly arm around his mate's shoulder. He would have rather done more but he knew they couldn't risk it until they were home.

Don smiled at him. "I got the job with the Violent Crime Unit at the FBI."

"Wow.. that's great," Charlie said, happy for his mate. "So, you're the boss now?" he asked with a sly grin.

Rolling his eyes at Charlie's implied tease, Don grinned. "Yep."

Larry smiled at both of them. "I think I'm going for a walk, maybe contemplating the turtle pond will help my theory building. I'll see you two later." He walked out of the office, mumbling, "Don't forget to lock the door, you don't want anyone to walk in here unexpectedly."

"He is a good friend," Don commented, walking over to the door and locking it. Turning around, he leaned against the door and looked at his mate, his eyes darkening with passion.

Charlie moved over to Don and captured his mouth in a heated, passionate kiss. "I missed you," he said when they broke it off.

Smiling at Charlie's silliness, Don smiled. "I missed you, too." It had only been a few weeks since they'd left Gil's pack in exile; so technically, they were still on their honeymoon. Don had always felt like something vital was missing when he'd been forced away from Charlie. Having the luxury of living and loving his mate was sheer heaven.

Don teased his mate, moving his tongue over Charlie's upper lip.

A knock on the door interrupted their play. "Charlie, are you there?" Amita's voice could be heard from the other side of the door.

Don growled and laid his head on Charlie's shoulder. "Don't answer her," he whispered.

"I'll have to," Charlie stated apologetic. "I think she needs to get article edits submitted today. Sorry." He pulled away from Don and opened the door, putting on his best smile, "Hi Amita. What can I do for you?"

She smiled at Charlie as she walked in, until she saw Don standing by the window. "Oh, hi, Don," she greeted him halfheartedly.

"Amita," Don greeted her, inclining his head. He knew that he needed to keep his emotions in check around her, but it was getting harder everyday. Ever since he'd watched Amita hitting on his mate, Don had become very territorial when she showed up - despite Charlie's reassurances. The way she kept touching his mate, as if she wasn't doing anything wrong, was quickly making Don think of ways to torture her slowly. Turning back towards the window, Don growled as a warning to Charlie, then promptly tried to ignore her.

Amita stared at Charlie's older brother. He'd appeared in LA out of the blue, and now Charlie was ignoring her in favor of spending time with him. That had to stop.

As she approached Charlie, she noticed that Don had a few open buttons on his shirt. For the first time, she saw a tattoo on his neck, going down his chest. When Don ran his right hand through his hair she noticed the tattoo on his hand, and it was the same as Charlie's.

"Uhm, Charlie can I talk to you for a minute?" she asked sweetly, focusing all of her attention on the object of her affection.

"Yeah, sure. Let's go to my desk." Charlie said quietly, trying to stay a step ahead of Amita's wandering hands. She never did anything so overt that he could call her on it, but despite how innocent the touches were, they left him feeling uncomfortable.

Realizing that he was causing Charlie to worry about his reaction to Amita's behavior, Don figured it was time to leave them alone. He trusted Charlie to handle this situation, and he needed to get out of there before he snapped and put his hands around her neck, strangling her. And he had never hurt a woman in his life. "I leave you two to your math or whatever you have to discuss. I'll see you at dinner, Charlie?"

Charlie nodded, "Yep, see you then."

"See you later, Amita," Don called out, trying really hard to be polite.

"Yeah, later," Amita mumbled.

Putting his desk between them, Charlie looked at her. "So, what is it that you wanted to talk about?"

"Why did your brother come back to LA?" She bluntly asked.

Charlie sighed. "It is a long story, and to be honest, it's none of your business." He knew that Amita didn't like his mate, and that was too bad for her; he knew that Don felt exactly the same way about her. Amita had been escalating her campaign to gain his attention, and Don was becoming more and more irate. He had tried to make it clear to her that he wasn't interested, but she just wouldn't give up. One of these days, Don would get really angry, and that could result in the alpha harming Amita in a fit of jealousy. No one came between an alpha and his mate.

"I'm surprised he even landed that job at the FBI, with his tattoos and those earrings," Amita said snidely.

Charlie narrowed his eyes, offended on his mate's behalf. "I have a tattoo," he said, holding up his right hand.

Amita raised an eyebrow. "Why do you have the same as Don? Is it a brother thing?"

"Yes, it is," Charlie said, grinning. If she only knew. "Is that what you wanted to talk about?" he said, hinting that she had better get to the point before he lost all patience with her.

Amita shook her head. "No. Professor Williams is giving a lecture tonight. I thought you might want to go with me."

"Sorry, Amita, but as you heard, I'm having dinner with Don tonight," Charlie said calmly.

"It's the third time you've turned down a lecture on Lindemann's Transcendental numbers by Professor Williams just because your brother wants to have dinner with you," Amita spat out. "What hold does he have over you?"

"Excuse me?" Charlie said, starting to get a little irritated with her persistent invasion of his privacy. "I think you are forgetting your place. Now, if there is nothing else, I need to grade some papers before I head home."

Amita ignored his look and tone. All she heard was that Charlie was turning her down again – and because of his stupid brother. "You used to like spending time with me before your brother moved here. Why don't you want to go to the lecture with me?" She asked, putting on her best pouting face. "I miss spending time with you."

Charlie recoiled at hearing the same words from Amita that his mate had been teasing him with only minutes before. He sighed, getting really tired of being caught in the middle. Why couldn't she just take no for an answer? No wonder Don was so frustrated with her; every time his brother was near Amita, he could feel the tension radiating from his mate.

"Listen, Amita, I told you the last time we had this conversation that I'm not interested, okay." He didn't know how else to say it gently. The next time, he was going to have to get rude, but he couldn't allow his mate to suffer just because she wanted to keep her delusions. Hoping she'd take the hint, Charlie sat down behind his desk and started to grade the papers of his students.

Amita couldn't understand why Charlie continued to let his brother walk all over him. Turning around, she stalked out of the office. She spotted Don talking to Larry in the hallway, grinning about something the professor was saying. Walking over to them, she looked at Don and sniped, "Charlie is a grown up. He can make his own decisions."

Frowning at Amita's sudden attack, Don asked, "What the hell are you talking about?"

"Like you don't know." She glared at him. "What do you do - beat him every day so that he toes the line?" she spat out. "I don't know what hold you have on him, but I'm going to find out. It's about time that Charlie starts living his own life - and without your interference!"

Before Don could reply, she stalked off.

Don growled at the idea of Amita getting possessive with his mate.

"Why would she think you beat Charles?" Larry mused.

Taking a deep breath, Don shrugged. "I don't know, but she'd better stay away from him or she's going to be really sorry," he growled.

Larry saw Don's eyes turn a wolfish yellow and glow eerily, knowing that Don would do anything to protect his mate. Larry didn't really like Amita much, but for her sake, he hoped she would leave Charles alone. Violence was always messy.

TBC.