Nicely done, honey. Although I can't relate to his desire to be cuckolded in a fashion, he seemed to be real and well described. And the sex was pretty hot too.
Not really my genre, so I'm a poor judge in a lot of ways, but I like the natural flow of your author's voice in the beginning. There's some awkward/confusing phrasing in there in places, on a quick scan.
The way you framed your post prompts me to ask, why do you ask?
I don't see any comments blasting you on the PC board, but that doesn't mean that you haven't gotten any. Also can't see the score, of course.
If you're concerned about a low score on your first offering, and this is your preferred genre, then I have a bit of bad news. The site, as it exists currently, isn't exactly bi-friendly.
Having a woman in the story as more than a peripheral character means that a lot of people in the gay male category will skip it -- perhaps even vote it low to discourage you from posting there again. They want gay men, and only gay men from what I've gathered. The same applies to lesbian sex in the reverse. It's not absolute, but there's enough of a difference from what I've gathered to discourage bi-story writers from posting such couplings in those categories.
Stay away from Loving Wives! I cannot stress this enough, even though your story fits the stated purpose of that category. The reality is something far different.
If you don't have skin as thick as a rhino, the venom spitting commenters in that category will tear you to pieces in seconds. If you look through this section of the forum for a thread with a title something along the lines of "so, it's arpil 10" ( April spelled wrong on purpose. That's how it is in the title of the thread ) you'll see how your story would get attacked there.
The bad news is, if your story attracts one of those commenters, even in another category, they'll swarm you like sharks. If you haven't picked up any nasty comments, you will. The "cuck and wimp haters" section of those readers is especially vitriolic.
Then there's group sex -- probably the best choice for your story. You'll get jumped there by people complaining that you snuck "nasty gay stuff" in there, and it should go in the gay section, where the gay male readership isn't exactly friendly because of the woman. Never mind that your pen name is a dead giveaway...
In short, you'll need a thick skin to post bi-male stories on this site ( and certain types of bi-fem ) if that's your concern. There is a readership for those stories, but you have to wade through a lot of protestors to find them, and your scores are going to suffer for it.