Knot

The Knot (also known as Bulbus Glandis) is a structure at the base of a dog’s penis which enlarges during intercourse, effectively attaching him to his partner in what is known as a "tie". Dogs are one of the few species which have a bulbis glandis which effectively "locks" them to their partner during copulation, to increase the male’s chance of impregnating his mate before any competing sperm can enter the bitch’s body.

Due to the baculum, a dog is able to penetrate before his penis is fully hard so the knot slips in easily before engorging with blood. Once the knot has formed the dog is considered fully aroused and at this point he will be cumming, little spurts that shoot out intermittently for the entire time he remains hard.

Oftentimes in zoophile discussion, individuals desire to know “What is the size of a dog’s knot?” The correct answer: "The size of a fruit.”

Some then retort “Well then, what fruit exactly?” To which we at the Zoophilia Wiki can only reply, “That depends on which dog, exactly!”

The knot of a German Shepherd.

In general, small breeds tend to have smaller penises with smaller knots, while large breeds usually have larger ones. However this is not some sliding scale that may always be expected to be accurate. There are some large dogs (such as sight-hounds and fine-boned breeds) which have small genitals proportionally compared with their weight and/or size. There are also some very small dogs (e.g. chihuahuas and beagles) which may sometimes be gifted with a larger penis than expected (and likewise the females with rather elastic vaginas). The fact is, one will never truly know what to expect until taking a look at that particular canine.

While commonly considered connected to canine partners, some species of seal also have this organ.

Pictured is a German Shepherd. Many breeds including different German Shepherds can have a few differences. This image is possibly after getting the knot exposed after stimulation. The shaft can usually be thicker.

Tie

The tie is when the male dog’s knot enlarges and becomes temporarily stuck inside the vagina or anus of his partner. If the dog is not very large then it will be easier to tie anally, although very big dogs are capable of managing a vaginal tie with women who are rather small or have very tight vaginas.

The tie may last from a couple minutes to half an hour, more rarely to upwards of an hour (reportedly). If the dog is too small, the tie will not be sufficient to lock inside and he will be able to remove his penis easily.

In some cases a dog may pull hard against the knot, causing an early pullout. This can be painful for the person and could be uncomfortable for the dog as well. Knot pullouts from the anus have more potential to cause problems as the vagina is comparatively elastic and resilient.

Two dogs knotted together, or known as a Tie.

External links

http://beastiality.club/beastiality-club-extreme-animal-sex-content/the-encyclopedia-of-zoophilia/