"McGee!" Abby greeted him warmly, "Oh you poor thing" and she enveloped him in a warm hug.

That was unexpected. He could get used to this girl. Wait was that a spider web on her neck?

Abby looked at his blank face with pity. "You really don't remember me do you?"

"No sorry", actually he really was quite sorry.

"That's OK", she said gently, "I'm sure we can bring it all back to you".

She brightened up, "Let me show you the lab again. I'll show you all the bits you love".

"I'll leave him with you Abbs", said Tony, I just have to check something for Gibbs".

"OK", Abby waved him off absently.

When he had gone McGee turned to Abby. "I don't really know how to take him".

"What do you mean?"

"Well, he's either making fun of me, or being nice to me or lying to me. I just can't work it out."

"It's frustration".

"Excuse me?"

"You see, McGee, Tony's gay and he is really into you but you're completely straight."

McGee blinked at her. Now he didn't know if he trusted her. She seemed so nice.

"It's true!" she assured him, "Tony and Gibbs are an item".

"What!" McGee exclaimed.

"McGee you're such a prude. Don't let Gibbs hear you talk like that".

"Um..OK", McGee stammered. His mind flashed back to Gibbs saying 'don't touch his face', Gibbs was jealous?

Tony reappeared and McGee looked at him in a fresh light.

"How's it going McGee?" he said.

"Ah.. fine", said McGee hesitantly.

"What's up?" Tony frowned at him.

"Nothing", said McGee innocently.

"I told him", said Abby triumphantly.

"And you believed her?" he shot at McGee.

"Well, I suppose so", McGee said, his eyes flitting between the two of them.

"I am so disappointed in you", said Tony whipping out his wallet and depositing twenty dollars in Abby's waiting hand.

"That was a bet", said McGee incredulously.

"Yep, only usually you're the one getting fleeced", Tony laughed, "Bring him back up when you've finished with him, Abbs".

McGee stared stunned at Tony's retreating back. He turned to say something to Abby but she had already moved on.

"I want to show you this equation", she said tapping on her keyboard, "It's from string theory. It called homology."

McGee looked at the equation on the screen. "You mean cohomolgy", he corrected her.

"Homology."

"No, it's definitely cohomology."

Abby rounded on him "How do you know?"

McGee opened his mouth to tell her and then realised he had no idea. It didn't mean she was right. "I just do."

"Because you did your year in independent studies at MIT in advanced string theory!" she yelled at him waving her arms dramatically.

McGee looked at her for a moment, processing what she had just said. "Oh…", he finally registered, "MIT", then he chuckled. "No wonder Tony laughed."

Abby sighed in exasperation, "I can't believe you!"

"What?" he asked innocently.

"I mean, how could you possibly remember the difference between homology and cohomolgy and not remember sleeping with me McGee?"

"Sorry," he wasn't sure how to apologise for something like that.

"It means you like homology better than me!"

"No it doesn't", he said indignantly, "It means I like cohomolgy better than you."

She stared daggers at him for a moment, then a thought struck her.

"So you really don't remember having sex with me?"

"I don't remember having sex with anyone", he replied, emphasising the point.

"So you're like a virgin, then?" Abby looked expectantly into his eyes.

"Excuse me?"

"Well, if you don't actually remember doing it, then technically you've been re-virginized," Abby explained patiently.

McGee knitted his brows and then wished he hadn't. Any movement of his skin hurt the lump on his head. He wasn't sure if it was condemnation or invitation.

"We're going to have to fix that", she smiled touching his nose with her finger tip.

McGee's jaw dropped a little. Did she just say that?