I was curious what plans you had with "Vanilla" and "Rough" variants of the animations. When I first tried the game out, I only accidentally realized that there was a toggle for the two modes, while I wondered why the female officers were doing a different animation from the one I was expecting.
From aesthetics alone, it looks like Onyx could either "seduce" enemies into using the Vanilla variant, or be affected by some sort of aphrodisiac that makes her open to such grapples.