Dear Point of contention,

This very much depends on the two people involved in the sexual act. For some women, orgasm is accompanied by contractions of the pelvic muscles, which can be felt by an inserted penis, finger, or by the mouth during oral sex. But not every woman experiences contractions during orgasm -- there are gradations in a woman's physical response during climax. It is perfectly normal for a woman receiving oral sex to ask her partner if s/he felt her orgasm. Similarly, the partner performing oral sex should feel comfortable asking his/her partner if she had an orgasm. It's not worth the argument, just communicate!

Alice