Jacques Batroc is a bad guy, don't doubt that, but he does have his own code. If he gives his word, he'll keep it.
The Avengers or SHIELD needs his cooperation or help for something, and Natasha is the one setting up the deal. Since he kinda got screwed by the Lemurian Star thing, he wants a sweetener to show that she's serious. She has to bend over and let him fuck her up the ass. After all, the Black Widow is supposed to be comfortable with everything.
Bonus: She has very mixed feelings about what she's doing, but ends up enjoying it, including the sex itself, more than she expected to. Maybe the mixed feelings are because she enjoyed it more than she expected?
Batroc/Natasha - dubcon, sex as part of a bargain
The Avengers or SHIELD needs his cooperation or help for something, and Natasha is the one setting up the deal. Since he kinda got screwed by the Lemurian Star thing, he wants a sweetener to show that she's serious. She has to bend over and let him fuck her up the ass. After all, the Black Widow is supposed to be comfortable with everything.
Bonus: She has very mixed feelings about what she's doing, but ends up enjoying it, including the sex itself, more than she expected to. Maybe the mixed feelings are because she enjoyed it more than she expected?