Gibbs knocked at the white wooden door. After a moment's hesitation, it opened to the point where it was restrained by a security chain. One hazel eye peered out.

"Commander Sarah Williams?"

"Yes."

Gibbs flicked out his NCIS badge. "NCIS; we've come about the body."

The door shut and there was the sound of a heavy security chain being slid. The door opened again, slowly revealing a face. Tony, standing next to Gibbs, felt his heart crawl up into his throat as each feature fell into place. Then the door was fully open and she was standing before him: that lithe body snug in its tight fitting Navy T-shirt, the dark wavy hair, those pointy elvan features. He stared in complete and utter disbelief.

"Kate?" he breathed.

"Who?"

"It's not her," he heard Gibbs gruff voice, dismissive yet tinged with hope.

"Why are you two staring at me like that, do I have something in my teeth?"

Gibbs was the first to recover. "You look like one of our agents, ah..former agents; Caitlyn Todd."

"Oh," now it was her turn to be taken aback.

"Ma'am?"

"She was my sister."

The words echoed in Tony's head. "I thought you lived in Florida." He had no idea why that had spilled out.

"I'm sorry; didn't Kate keep you posted on my change of address?" Sarcasm was apparently a family trait.

"Wow you look just like her," said Tony in awe.

"Are you two going to come in? I'd like to find out exactly why there was a dead sailor in my bedroom."

She took a graceful step backwards to allow entrance to the small living room and the two agents shuffled past her, their eyes remaining glued to her face. McGee hurried up the path towards them.

"Sorry, I took so long, Boss," he panted, "Ziva was just….Ahhhhhh!"

His eyes fell on the familiar face. They stayed rooted to the spot for a whole minute before slowly rolling up into his head. He toppled through the open door like a pillar with Tony grappling unsuccessfully for him. As the others watched, the two performed a delicate pirouette resulting in McGee landing squarely on his back and Tony toppling face first to land on top of him.

Tony took a moment to recover then climbed off McGee's body to crouch next to him. He watched the younger agents eyes flicker open and focus on Sarah's face.

"I'm sorry I fantasized about you in a leather Sadomasochistic outfit," McGee blurted.

Tony gave him a slow round of applause, "McGee: Very nice! I had the whole school girl thing going with the mini-skirt blowing up but you really out-did yourself. This is Sarah, Kate's sister."

"Wait," came a familiarly incredulous female voice, "You two fantasized about my sister?"

"Ah… only after she was dead.." McGee tried to defend his actions.

"Sure," said Tony unconvincingly, "after."

"You people really are sick."

"So she talked about me then?" Tony asked hopefully bouncing up from his vigil over McGee.

"Not really, she just said she worked with some sicko."

"She talked about me," Tony smiled.

"We didn't see you at the funeral," Gibbs noted.

"I was on deployment. By the time I got word, it was already over. Kate would have understood."

Ziva appeared at the doorway.

"Why is McGee lying on the floor?"

"Because he saw me," said Sarah, waiting for a reaction.

"Well, you're not particularly attractive but I hardly think it's cause for…."

"She's Kate's sister," Gibbs cut her off before she inserted her foot irretrievably into her oral cavity, "there's a striking resemblance".

Ziva tilted her head to one side with a frown and examined the face in front of her. "Tony's only ever shown me one photo of her."

"And?"

"Well, I'm not sure. Would you mind throwing a bucket of ice water over your T-shirt?"