Drunk Masturbated To Something Weird

Okay, now this sounds very weird but hear me out. One, I have OCD, the most prevalent being HOCD (I don't believe I am gay and am gradually moving forward with it).

Basically one year and a few months ago I got drunk and still was pretty drunk when I was home. I was quite turned on and decided to masturbate, somehow on facebook a picture of my cousin came up (a female) so I for whatever reason looked through some of them and decided to masturbate to them, for maybe 30-45 seconds. I'm not even sure I was imagining having sex with her, i was just kind of looking at the picture. I did not orgasm to them at all and was more or less darting between several women in my head. I don't really believe I'm attracted to her, I certainly don't have any aspiration to want a relationship, make out or in any way have any sexual contact with her. Since then, being more than a year ago I haven't had the urge to do this at all nor have I felt any fancy-ing feelings for her. An isolated incident I guess. Bare in mind I only ever see her maybe once in a year and half and even then it's only for a couple of hours, so we're not really very close.

Anyways, with my OCD I randomly thought about the time and went into panic last night. I guess my panic was around the fact that it was even if in just a very brief moment and in the most simple form, it was incest. So now I am very worried that I am a complete weirdo and have done something pretty awful, almost against my will. This is something I know will not occur again nor do I have any fear that I will want to in any way.

So, is this maybe a possible normal thought to get once in a lifetime and did the alcohol cloud my thought / judgement when I was just turned on? I often get many troubling images my head over the years, from gay to even the weirdest fear of being a pedophile.

ANY HELP IS MUCH APPRECIATED.

Incest, pedophile and gay thoughts are all normal when growing up and sometimes beyond. It doesn't mean that you will act on them, nor does it mean you take them seriously. Look at what they have in common. They are all taboo subjects and things that society and the world says is wrong. Some more than others but they are still taboo subjects. Obviously acting on pedophile thoughts would be very wrong and if you ever suspected that you might do this now or in the future then you should seek help immediately before it happens. With your cousin...that's normal. You know nothing is going to happen, but mostly, you know you can't have her and that's why it turned you on. We want what we can't have and we are turned on by what people think we shouldn't have.