it seems like anal sex is always the end of the semantics train. though there are many ways to describe it like "going in the out door," "the back door.."
but once you say," lets have anal sex" it is a pretty set deal.
theSnake I recall seeing a KITH sketch here involving Dave Foley as a hitman where the premise was extremely similar to this.
I will award +1 star because the other clips of this show were funny.