Yes, he is deceiving Lance, but Lance in all intents and purposes did consent to their sexual relations. The deceit is so Domi can have Lance get to know him I'm going to have to disagree here. Lance consented to sexual activity with RED Spy, not with Domi. I would also think that someone who genuinely cared about their love interest would get to know them in less... intimate... ways before skipping straight to sex. That's playing an extremely dangerous game with someone's emotions, and a considerate person wouldn't take an action with such an obviously huge chance of hurting their love interest. No, it wasn't violent, but it wasn't consensual, and it was sleazy, deceitful, and selfish.