The act of licking, rimming, analingus, and tonguing a woman's asshole while stimulating her clitoris with your thumb. This works best if she is in a doggy style position with her ass up and her head down. As her legs start to quiver just before she cums, slide your tongue deep in her rectum and she will have the best orgasm ever. After doing this technique night after night I have found even the most timid women will be curious about anal sex, even the ones who swore they would never do it.

the whale tail is the shape formed when a g-string rides up high over a womans trousers