Disclaimer: I own nothing, and only borrowed these characters for a little while.

"Liar, liar, pants on fire," said Patrick Jane.

"I'm not a liar," retorted Teresa Lisbon as they moved briskly down the footpath.

"Are too," crowed the cocky man.

"Are not," shot back Lisbon obstinately, thinking – not for the first time – that Jane brought out the kid in her.

Blame it on her momentary lapse into thought, but she wasn't prepared for when the consultant pushed at her shoulder with a final "Are too".

Stumbling to the side, the special agent retaliated swiftly, hitting Jane's shoulder hard. The smirk on his face gave way to surprise as he lost his balance and began to fall sideways onto a lawn.

Lisbon's laughter was rent from her throat as Jane reached out blindly. He grabbed her arm wildly and she down with him. "Oof."

They were still for a moment before Lisbon made to move from where she was on Jane's chest. Struggling to find a grip on his chest to push up on, she braced her hands on either side of his body, her palms sinking into the grass.

She tilted her head to look at his and her words died on her lips as their gaze held. Jane's lips had looked ready to speak, but he too was silent as the air crackled between them.

"Get off me," muttered Lisbon eventually.

"You're the one that's on me," reasoned Jane, his eyes twinkling.

Flushing, Lisbon scrambled upright. With her back to him, she brushed the blades of grass off her clothing as she heard him venture upright himself.

Turning around to face him, the determined woman raised her finger in warning. "Mention this to anyone and I'll go all dead-rat-in-your-pocket on your ass."

Jane was delighted as he thrust his thumbs into his vest pockets. "Promise?"

She refused to dignify that with an answer. Damning the blasted man to hell and back, Lisbon made a beeline for the car.

She had all the more reason to wish Patrick Jane to the fiery depths when she patted at her pant pockets and realised that they were bare.

Lisbon didn't need to look behind her to know that Jane would be standing there with a stupid grin on his face, dangling the car keys on his finger. She turned, and seeing that it was pretty much as she had imagined, thrust her hand out.

"Give me the keys, Jane."

Finito.