Hi Fred,
Glad you liked the story, and I hope you're feeling better.
I'd agree with Sebastian - you should communicate this with her.
Quite a lot of men have some kind of homoerotic fantasy - even if they consider themselves "straight". My personal opinion is that our sexuality is really complicated, and can't be described with black white labels.
If you are exploring this aspect here are three suggestions. These are graded from "mild" to "harsh" and my advice is to work your way up during future sessions - assuming you are turned on by this kind of fantasy.
Mild
Use your homoerotic "sins" in the form of a confession to your Domme. It would be useful for you to write some notes for her anyway - that way she can pick up some of your preferences and do her job better. During the session she can use your confession as the basis of verbal abuse - and believe me that can be extremely powerful.
Midway
Assuming you are still turned on by the homoerotic side, you can ask your Domme to wear a strap-on, and use it to humiliate you during the session. The midway approach is for her to force you to give her a "blow job". You can choose to resist...at which point she has an excuse to punish you until you comply. This can be fun because it doubles as a safe word during the punishment. She can, for example, use corporal punishment on you until you agree to give her a blow job. The level of verbal abuse can now be increased because she is witnessing you performing a "disgusting" act. If you'd like more CP, just stop obeying her, or deliberately give a "poor" blow job. This can be a signal to her to use CP on you while you're on your knees in front of her.
Harsh
This would be for her to use the strap-on to sodomize you. The reason I'm putting this in the "harsh" category is that I'm aware of your prostate condition, and you should absolutely check that this kind of insertion is safe for you. Also, with a blow job you need to "comply" and actively perform the act. With sodomy you can be tied down and be "anally raped", so this could play into a more submissive fantasy. Even more extreme is "ass to mouth" play, where after she anally rapes you she would force you to suck the dildo.
Assuming there's no danger of it being discovered at home, I would advise you to invest in your own strap-on. A good Domme will understand the importance of hygeine - especially with anal play - but why take the risk? If you are tempted before you can get a strap-on then make sure she uses a condom on her dildo.
You can see that you can take it quite a long way without involving another guy. But if you want to try that, then I'm sure the Domme can arrange for another slave to be there, and "force" you to commit unspeakable acts upon each other. Personally I think it's a really hot fantasy
Cheers,
Stanley
PS. If you're looking for some inspiration, many of the English Mansion movies have themes of "forced" homoerotic play.
http://www.theenglishmansion.com/home.html
