A/N: Thank you for all the reviews and still following this story. Thanks a great deal to KoineKid and Dwparsnip for their feedback. Yes, DWP, I lifted some of your lines word-for-word from your suggestions. Once again, the reminder that General O'Neill is OOC and some other characters might be too.

Jack O'Neill fought down the anger that coursed through him as he stopped in front of the door belonging to Rodney McKay. Images of Jennifer as a pre-teen girl floated to the front of his mind, especially the time he took her to a Father/Daughter dance because Robert hurt his back. The halo of blond hair, which she'd curled into ringlets, and the satin, poufy pink dress she wore had made her look like a little angel.

That picture of innocence was replaced by a darker image. On the other side of this door Jennifer could be in a skimpy nightgown under the covers in his bed. A growl issued from deep in his chest as he slammed his hand against the door mechanism. Since his gene was so strong the door swooshed open to reveal Doctor Rodney McKay pulling on a pair of pants.

Jack took in the empty, messed up bed and the closed bathroom door. "Where is she?" he barked as he stalked into the room.

"Who?" McKay snapped. "What the hell gives you the right to storm into my quarters in the middle of the night?"

Jack looked to his left shoulder and then his right. "These little stars," he quipped mirthlessly. "They're great little door openers. Now, where's my niece?" His voice was low and clipped.

"Niece?" Rodney finally got his pants zipped and ran a hand through his hair, which was still sticking up. "Who the hell is your niece and what's she got to do with me?"

"So Jennifer didn't tell you that I'm her uncle?" Jack shot back. The shock on Rodney's face gave Jack great satisfaction. So she's not totally wrapped around his finger.

"N-no, but… why are you here at," he glanced at the clock near his bed, "4:00am!"

"For crying out loud, you're twice her age. I'm here to keep her from being taken advantage of during your mid-life crisis." O'Neill moved into the room as the man in front of him crossed his arms over his t-shirt that read Know-It-All University. O'Neill's eyes narrowed as he remembered buying Jennifer a t-shirt like that when she got her bachelors degree in biochemistry at eighteen.

"Taken advantage of? Twice her… I'm not twice her age!" the physicist shouted as he stepped in front of the General. "Now what the hell are you doing in my quarters?"

"Is she in the bathroom?"

"Jennifer's not here."

"You're a lucky man," O'Neill said as he relaxed knowing none of the images he thought about would pop out of the bathroom. "If I'd found her in your bed I'd probably hurt you." Jack let Rodney mull that over for a minute before adding, "Or at the very least exiled you to Midway with Lee and Kavanagh for the rest of your career."

"Midway?" McKay shouted incredulously, his blue eyes wide and his face white as a sheet. "What the hell are you talking about? Jennifer's a grown women, who is only thirteen years younger than me, not half my age." McKay's color was returning as he pointed a finger at O'Neill. "Just because you're a General it doesn't give you the right to come into my quarters and grill me about my relationship with Jennifer."

"If Jennifer could get hurt, I'll get involved."

"I'm not going to hurt Jennifer," Rodney barked as anger contorted his face, which was now bright red.

"Do you think once you're through with her, it won't hurt her?" Jack ground out. "She's a sweet kid who grew up way too fast and she doesn't deserve to be a trophy for an arrogant, self-centered man like you."

"Trophy… What the… Self-centered?" Rodney started rambling and O'Neill pounced.

"Or she is just a fill in because you couldn't get Carter?"

"Carter. What…" McKay stopped talking, as he looked too angry to put words together. "Get the hell out of here." He pointed toward the door.

Jack crossed his arms. "Tell me you're through with Jennifer."

"Never," Rodney barked. "Jennifer's the best thing that ever happened to me."

Jack heard a sound behind them, but didn't turn. "Of course she is. She's beautiful, intelligent, young."

"Out!" McKay yelled again.

"Tell me you won't sleep with my niece again!" Jack raised his voice and got in McKay's face.

"Niece?" a couple of surprised voices said from behind O'Neill and McKay.

"I'm not sleeping with Jennifer!" Rodney snapped.

"General!" Samantha Carter's voice registered with Jack.

They aren't sleeping together? What the hell is he waiting for? Jack stared into the intense blue eyes blazing before him. McKay was breathing heavily and had his hands fisted. O'Neill realized if this were anyone else they probably would have hit him by now. For the first time Jack O'Neill wondered if he'd made a mistake.

"General," Sam's determined voice spoke from next to him. "Rodney, will you excuse the General and I?"

"I'd appreciate if you hauled his ass out of my quarters," Rodney growled, crossing his arms.

Jack turned to see Richards and Sheppard standing outside the door. He glared at the Master Gunny as he walked by him. "Get Jennifer."

"She's not here, sir," Richards replied as he stood at attention.

"Where is she?" Jack asked. "You're supposed to go with her when she goes off world."

"She's on New Athos with Teyla," the Marine replied.

"Bring her home," he snapped.

"Yes, sir," Richards replied and turned to call Chuck.

"General," Sam said. "Can I have a word, sir?"

Jack turned to look at an angry set of blue eyes and saw a look of betrayal on her face. Walking with her down the corridor and into an alcove for some privacy, the General explained, "Jennifer didn't want anyone to know. She was afraid someone would think I got her this job, which is the furthest from the truth. She'd be in the SGC with Lam if I had my way but no she wanted to work with Beckett because he's the best."

"I've been here almost four months now. Didn't you think I needed to know?" Sam crossed her arms and glared.

"Richards was supposed to be watching her." Jack glanced toward the corridor where the Marine was talking to Chuck. "And he did a lousy job."

"Not as bad as the one you just did by storming in at all hours of the morning, pissing off my head of science and basically calling him out for being in love with your niece." Sam continued to glare at him and Jack felt his anger flee.

"In love with her?"

"Yes. McKay's changed in so many ways since being in the Pegasus galaxy. His capacity to care about more other people than himself has grown exponentially and with your niece in particular. They've been trying keeping it a secret, but on a military base with the best of the best the only ones clueless are those two." Sam was trying hard to keep her voice down. "Now if you're done being an ass, sir, you better apologize to McKay and then tell me all about your niece."

"I'm not apologizing to him…" Jack started only to be cut off.

"Ma'am. Sir. I'm sorry to interrupt but Chuck can't raise New Athos," Master Gunny Richards said.

TBC

A/N: This was a hard chapter as O'Neill rarely fights-really fights-with anyone on the show so it was tough to put him in this situation. I've also never written Sam/Jack as a couple so again there's no canon basis for it. Thanks for letting me dabble.