Am I Abnormal?

As long as I can remember I've loved eating pussy. I don't just do it to get her in the mood or simple foreplay. I actually have had lady friends who the only kind of sex I had with was giving them oral. I can be satisfied sexually by just eating pussy. I've done if for over an hour many times. I love everything about it. When I turned 62 I started having problems with getting erections like many men but what always got and still gets me hard is eating pussy, especially if she is very wet or even squirts, my biggest turn on.
I know many guys who say they are just a lesbian in a man's body which is funny sure. But I know not all lesbians love eating pussy. So it's just a lame joke at best.
I wonder if I'm abnormal or if this is common or more common that I think. Some women have told me that they never met anyone like me who loves eating pussy like I do.

My current girlfriend loves me eating her out but after 15 minutes or so demands I fuck her which I do gladly. But I'll often go back down just after she cums from that. Then repeat until we're both wore out.