This is the new part of Black Widow.
The Black Widow pretends to be resting and her victim, unsuspecting, sits down next to her and starts looking at his phone. Meanwhile, Black Widow took advantage of the moment and grabbed her victim in her legs lock.
It was all a foregone conclusion. The victim was doomed. Front scissors, then reverse scissors, and Black Widow completes another task.

This is a video from a surveillance camera in the victim's house.