Question on Oral

[Numinosity]

While there probably are some different types of advice one could give, I think the most important thing I can say is: have you tried talking about this with your Master? Simply put, he wants something from you of which you are slightly uncomfortable with. Sounds like what you really need is too communicated with your Master and then progress from there slowly.

This is the advice i personally think will be the most helpful. Hope you will figure something out.

Edit for extra half-serious advice: Otherwise, if it is only the taste you dislike, perhaps ask if your Master would mind to end with a closed mouthed facial?