"Zi?" Tony squeaked, gingerly easing the zipper of his slacks back over what was still a pretty noticeable hard-on. He knew he couldn't let Ziva in, while he was still in this state. One of two things would happen: she'd tease him mercilessly, or he'd loose all control and they'd end up fucking right there against his front door.

Actually, maybe he should let her in…

He shuffled to the door and opened it just enough to peak his head out, greeting his partner, who was soaked from the rain. Apparently it had started raining.

"It is raining," Ziva stated.

And if it wasn't a challenge to not jump Ziva at work earlier today, it certainly was now, with her clothes clinging to her skin like that, and her nipples poking through the thin fabric of her shirt. Not to mention he had just spent the last ten minutes pleasuring himself to the fantasy version of her doing dirty things to his dick. He swallowed hard.

"Apparently." He managed to reply.

"May I come in?"

"Uh, uh… now's not the best time, really."

Ziva took in the sight before her. Tony was lightly covered in sweat, breathing quickly, and wouldn't reveal his full body to her.

"Oh…" she sighed. "I did not mean to interrupt –"

"–No!" Tony cut her off. In retrospect, it probably wasn't his greatest idea. He probably should have let her believe there was a girl waiting for him, with the state he was in. But something had flashed in her eyes. Was it… jealousy? Disappointment? Whatever it was, it made him want to set the record straight. "There's no one here, or anything."

"Oh," Ziva said. Then realization swept over her, along with a knowing grin. "Oh…"

"Oh? What do you mean –?"

"–No, no, it is okay, Tony." Ziva teased. "We are all adults here. I apologize for interrupting your alone time."

"What makes you think I was…" Tony stammered. "Alone time?"

"What are you hiding behind that door, Tony?" Ziva prodded.

"Why are you here, again?" Tony demanded.

"Just wanted to borrow an umbrella. I was walking in the neighborhood and it started raining," Ziva stated. "But had I known you were busy, I would not have interrupted."

"I wasn't busy!" Tony insisted.

"Then let me in," Ziva insisted right back.

"No," Tony said firmly.

"Then tell me why I cannot come inside."

"No!"

"Geez, just how close were you, anyways? Men are so grumpy when they are denied their orgasm…"

Tony froze. She didn't just… no. Ziva could be forward, sure, but that… that was so unlike her…

"Excuse me?" he asked nervously.

"When I interrupted. You must have almost been finished, I can see it in your face. You look… frustrated, yes?"

"I'm not telling you!"

"Ha!" Ziva exclaimed. "So you were doing it, I knew it." She grinned at him again, and then eyed what she could of his body. "And I clearly interrupted at a pretty crucial part, so I'll just get going, then…"

"No!" Tony barked.

"What, do you want me to watch?" Ziva shot back, her voice laced with sarcasm.

Tony froze again. Only for a moment, because, God, that would be so incredibly hot. Jerking off with her eyes on him, like that. He knew she was kidding, but wow, he could show her just how he liked it, and she'd probably join in. And, oh yes, he'd get to watch her work herself too, and the thought alone made him shiver. At that moment any blood that had traveled back to his brain immediately rushed south again. And it must have shown in his face, too, because Ziva very quickly answered her own question with a gasp and an ear-splitting grin.

"You do, don't you?" She was loving this.

A voice that Tony didn't recognize as his own replied. "Do you want to?"

And just like that, it stopped being teasing between two friends, and something much, much more real.