If I may add a small observation ...

On the reverse side of the coin is when you are enjoying giving oral, settle in for a decent "munch", and then get interrupted by one's partner wanting "more" (e.g. penetration). Excuse me! Providing oral is amongst the best demonstrations of love/adoration/giving that we have - as a male giving oral I concentrate on moving my tongue, but not necessarily always pumping blood into my groin. (In some stories, of course, both males and females are constantly ready for sex!).

VV