Disclaimer: I no own…they no sue!

Author's Notes: This is an AU, where Jack from SG-1 has a sister in the Air Force…. She much younger than he is and she just has been sent to Atlantis…. I'd like to thank Padfoot (AKA Gypsy Lupin-Black) for beta-ing with that horrible red pen…Please review!

Directions Not Included

"McKay… shut up! I can't read this with you yelling at me like some kind of deranged ape!" Major/ Doctor Gwendolyn O'Neill growled at the man who at the moment looked like a sullen teenager. She squinted closer at the Ancient carved into the inside of the blue arch-thingy.

"Well!" He huffed as he walked to the other side of the arch. It had been discovered in a lab, during a run through of the city. Major Sheppard had walked into it while he had been watching Ford try walking on his hands for 20 feet. He had said that it suddenly rushed with power then flicked off.

"Oh, God! You're worst then my bro-"Gwen growled but stopped as a blue light slowly began to sweep over her. There was no sound as it scanned over the stooped scientist. McKay stared as the light shimmered through Gwen; he was frozen to the spot.

"McKay, O'Neill I need you two at the control room now!" Dr. Weir's stressed voiced sounded in McKay's earpiece. Just as the radio clicked off the blue light disappeared and Gwen stood straight and looked at McKay.

"That was strange…"

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It had been a month since the Atlantis team had found four ZPMs in another deserted Ancient outpost. It had been like Christmas morning for everyone of Atlantis when the ability of two-way travel had been established that fateful morning. Even with the ability to open the wormhole home almost everyday, those in command had decided that a connection between Earth and Atlantis would only occur every four months.

Gwen had been one of the first new members of Atlantis to arrive. Jack had been totally apposed, sending his baby sister to another galaxy was not what he called a good birthday present. But after several threats from Gwen and General Hammond, he let her go. That was how an O'Neill graced the floors of Atlantis…and how she got into a very vindictive rivalry with the lead scientist of Atlantis.

"No, no, no! If you connect that you'll crash the system!" Gwen growled at McKay. After the somewhat panicked order from Dr. Weir, both scientists had grudgingly put the inspection of the arch-of-blue-light on the back burner as the rushed to the control room.

"Excuse me! I've been here longer and I know what I'm doing!" McKay snapped as he grabbed the clear glowing wire from Gwen's hand.

"Whatever you say, your Majesty… I'm leaving…. We've been working on this thing for hours." She rubbed her eyes and glared at the caffeine driven maniac lying under the consol.

"You do whatever you want…you-you military princess!" McKay said princess as if were a dirty word, "But if Dr. Weir is angry I'm not going to take the heat…"

"Hhmmmm…that's fine. I don't care." Gwen said between two mammoth yawns. She turned toward the staircase and grumbled all the way to her quarters about overbearing co-workers with caffeine addictions being out of control.

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As she got ready for bed her stomach began to feel queasy and if she were being rocked back and forth on her brother's old boat. It slowly got worse and worse as she slid between the sheets, until she bolted for the bathroom and had a meeting with the porcelain god.

"Must be because I spent all day with McKay…" She said to her self as she warily staggered to her bed and gently lowered herself into it.

A/N: You know you want to click on that little review button…