Canine Penis

the p-n-s of a canine has many differences when compared to a human p-n-s.

when docile, the p-n-s remains in the dog’s sheath to keep it sterile, moist, and protected. the p-n-s usually leaves its sheath when the canine is aroused (not to be confused with erect) or when he is thrusting.

the p-n-s itself is usually red or pink in color and is composed of a membrane layer that is similar to what’s on the inside of your mouth. it does not become ‘erect’ until after successful penetration. instead, the stud’s p-n-s maintains its shape with a bone called the baculum.

when finally “erect”, a thick “knot” at the end of the p-n-s fills with blood and swells several times its flaccid size. this is called the bulbus glandis, and it keeps the male dog tied — or knotted — to the female dog, which prevents any reproductive liquids from leaking, thus improving the chances of a large or successful litter.

finally, a male dog’s p-n-s does not feel pleasure in the same way that a human p-n-s would. where stroking of human’s p-n-s (i.e. by a hand, v-g-n-, mouth, etc.) brings pleasure to the man, the opposite is true for a canine, as it’d only cause discomfort and irritation if prolonged. instead, the stud’s p-n-s responds mostly to pressure behind its bulbus glandis, which insures that the knot stays ‘erect’ when the female’s v-lv- is clenching behind it.
uneducated friend: haha, look at spike’s red rocket! my dog has a b-n-r!

educated friend: that’s just his canine p-n-s being forced out of its sheath by his baculum because he’s sitting down.

uneducated friend: dude, how do you even know all that? you must be some zoo weirdo.

educated friend: please bury yourself in a hole and take your prejudice with you.

uneducated friend: you’re just offended because you’re a zoophile!

educated friend: it’s idiots like you that keep science and education from advancing.