The first step is to admit you have a problem which you've done, which is great means you're still able to reflect upon your actions. Most comments are joking or very disturbed because admittedly it is a scary thought for anyone to do that when you're not home. Most advice I've seen was pretty good stop watching porn or restrict it if you're addicted to it which js easier said than done. And in my own personal opinion since you're still able to reflect upon your actions find a licensed therapist. It is not always easy to find a Therapist or one that fits as in it feels like can help you specifically. But I would still try and the more open and honest you will be infront a professional who is payed to not judge you and help you the more progress you'll make. Wish you the best of luck and please don't try to ignore the problem because most problems especially psychological one's don't go away on their own. They become harder till you can't control them anymore. And perhaps what happened was part of that process. Would also consider SAA ( Sex Addicts Anonymous ) for help.