>>5039814 (OP)
You need to understand something about Dobermans, my friend. It isn't merely the silky texture of the fur and the occasional sticky icky pull of the skin against the girl's back and thighs as the athletic, human-sized Doberman pumps away. It's not the Platonic ideal of a knot that the Doberman awkwardly yelps and whines over as it steadily drools watery fresh semen into your suburban lady's rancid infected cunt.
For us Doberman owners, the true gem that we obsess over and cannot resist is the breed's meaty, pronounced, elastic sphincter.
There simply is no dog anus, nothing you will ever find whether you rape Labrador Retrievers, Irish Setters or even the American household's favorite sexual plaything, the Weimarer, that matches that tug and suction of the Doberman's puckered sphincter as you plunge your circumcised 5.5" Ole Smokey deep, deep into your furby's quivering innards. No underaged nympho fuckmeat in the deepest armpit of Southeast Asia, no biker-shard-overdosing transsexual on the lower Eastside, no dememntia-ridden quadriplegic in the care home striving to recapture the forbidden joys of her youth, will ever come close to the tuned, puckered perfection of penetrative rectal intercourse with your best friend the Doberman.