I wouldn't disagree with what sissyhusband says, but I would like to point out/suggest that husbands or males who do the sort of things described, or who engage in other types of subservient sexual activity, aren't necessarily, and don't have to be, sissy boys.
Some are of course, and nothing wrong with that if they enjoy it, great, but being a sissy isn't, and shouldn't, be a prerequisite for this sort of activity/behaviour.
I just wanted to mention that point, because there are a lot of messages on these sort of sites, which seem to suggest, or give the impression, that any male engaging in deferential behaviour in a sexual context is automatically a sissy.
Even the word, submissive, doesn't have to mean, sissy.
Perhaps we should consider using a broader range of terminology, for example, words such as, deferential, subservient, obsequious, servile, wimp, wimpy or wimpish.