Yes, it would be sexual harassment.
The most likely outcome is that he will stagger, traumatised by the ordeal, to one of his superiors and lodge a formal complaint.
As he rocks to and fro, pale and wide-eyed, he will be cloaked in a comfort blanket and the company psychiatrist sent for to make the first assessments about the effects of the incident and what treatment plan would be best.
Once he has been seen to, the company will inform the police. Since it is a matter of such seriousness, the chances are that you will be arrested within the next twenty-four hours. You will be charged not long after, and upon conviction will receive a sentence of around fifteen years in prison. While in prison, your fellow inmates will be so reviled by the horror of your crime that they will not only isolate you but actively disrupt your happiness and even endanger your welfare.
You will be released within ten years if you are lucky, but on release the world will quickly reveal itself to be another kind of prison as you realise all of the career ambitions you had set your sights on are now barred from you because of your appearance on the sexual offender register.
You make enquiries about the location of the former colleague who you had previously harassed, and learn that for as long as you have been in prison he has been treated in a high-security mental hospital. You visit him, but he does not recognise you; in fact, he doesn't seem conscious of anything at all, sitting motionless for hours on end staring out of a window.
All resentment subsided, you are thankful for what freedoms you still have, and go on your way a happier woman.