Is Guppy a blue whale?
I looked up "longest animal penises" (blame this comic), and the blue whale seems to fit the description, scoring a massive 8-ft boner with a 12-inch girth, boasting the title of the largest penis in the animal kingdom. However, comparing it to its large bod, the penis-to-body-length ratio is just 1:10. Humans have it 1:12.
TIL tentacle dicks are legit.