There are many heterosexual guys that fantasize about eating their own cum. This post is not about whether this is right or wrong, sensual or gross. This post is to share my experience and help other guys who have this fantasy.
I had been married several years before I started having these cum fantasies. Mine began when my wife was enacting a little sexual revenge. I month before this "trigger" episode, I was dominant with my wife and made her eat my cum. That was dumb. It was not her fantasy to do so and we definitely did not discuss it before had. To this day she will not purposefully eat cum because it reminds her of that experience (one of many mistakes to take note of). So a month later, she did not have the nerve to make me eat cum, but she did tie me up and tease me about it. She also made me eat my pre-cum...this was a first for me.
After that event, I found myself fantasizing about eating my own cum. I did not dare share my desire with my wife. Every once in a great while, she would give me a hand job during which she fed me some pre-cum. I would get extremely turned on and she could tell, but it never led to feeding me after I had an orgasm. Because I hid my desire, I began scouring the internet to see if I was a freak or if this was normal, or somewhere in between. This search and my wife's periodical pre-cum feeding drove me to femdom and bdsm stories. It turned out that there was enough guys like me that entire websites were created and movies made for this fantasy. It may not be mainstream, but I am not a freak.
I would read these stories when my wife was out of town or when I was away on business by myself. I felt safest then. I tried to eat my cum several times, but I always failed. Once I would have an orgasm, I would totally lose the ability to stomach such a thought as eating cum. (If you read many real stories and accounts you will find that this is fairly universal for heterosexual men.) I tried the 'store-it-in-a-cup-for-later' trick, the freezing method and the penis over the mouth while masturbating position but all failed. I finally decided that if I were going to really act this fantasy out, my wife needed to be involved.
One night, after a year of fantasizing about all of this, I rushed home before my wife, booted up the computer and opened up three of the stories to which I had masturbated many times. I shut the monitor off, but left everything up so that I could direct her attention to it when I thought it was appropriate. After dinner, I let my wife know that I wanted her to look at the computer. I told her that turn on the monitor and read the sexual stories. I told her, before she read the stories, that this was a fantasy of mine that I would like to do.