In Shrek 2 it’s revealed that Donkey had kids with the Dragon, but how the fuck did he get it in? Assuming that the average donkey is 4.7 feet long, the dragon is around 5.5 times the size of Donkey, it would come in at a massive 25.85 feet.
A human’s vagina is typically considered to be 2/5 of the way up the human body, meaning that to reach the dragon’s vagina, Donkey would have to get a 5.67 ft stall.
In addition to this, the average vagina depth of a woman is around 4-5 inches. Considering the average size of a woman is 5ft 4inch, we can see that the dragon is approximately 4.7 times larger than the average woman. Due to this approximation we can estimate that the vaginal depth would be 4.7 times bigger also: this means the dragon has a 21inch deep vagina.
The average donkey penis is around 14 inches, making it just over half the size of the vagina. However, sperm can only travel around 18cm before dying, meaning that it could never reach the dragon’s cervix.
In conclusion, there is no way that Donkey could have impregnated the dragon.