Stakeout «An Avengers Oneshot»

Natasha's breath caught in her throat when she saw the American walk quickly to a waiting limousine, looking nervously around for any visible threats. Including her, she supposed. He slid into the limousine and his escort followed soon after. She leaned forward into her binoculars, resting her elbows on the cab's leather-covered wheel.
Yes. He was the prey and she was the hunter.
The silence was deafening. A bead of sweat made its way down her face. The limousine started up. Natasha stiffened as the driver pulled forward slightly. She could hear her pulse thudding in her ears.
With a horrible wrenching sound, the cab's door was pulled suddenly open. The binoculars tumbled from Natasha's grip as her right hand went for the handgun at her hip. She twisted around in the driver's seat to see a young woman looking at her hesitantly.
Natasha crushed the pads of her fingers into the butt of the gun.

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Note: Set in the Marvel Movie universe, not the Marvel Comics universe.