Honestly it's too early to cry "Forced Femdom!" at this stage, I'm not a fan either but WWG has implemented it with a light touch, compared to a lot of other femdom scenes in other games. As it was stated earlier this isn't counter to Ophelia's character either, WWG dropped some pretty big hints during the book club scenes, and the bathroom scene made it pretty clear that Ophelia snapped. Her life is out of control and Sterling made a forced advance on her against her wishes, in an environment she already knows is not normal or "right". Sterling made it clear he wasn't going to stop, so she coped the only she could by taking control, I'm pretty sure this was in her mind the only way not to lose it completely.
As was also touched on earlier, Sterling has been gradually changing and becoming more and more like Hunter. At the beginning of the game he was slightly wimpy, timid and wouldn't have dreamed of engaging in any kind of sexual antics with the other characters. Now he's buff, confident, assertive and kind of predatory in his behaviour. Ophelia's scenes may be femdom for now, but that's not to say Sterling might not end up turning the table back to his favour. We'll just have to wait and see.
