Because it would look ridiculous with 8 inches.
Cause it looked hotter than usual!
A red bucket.
The elephant of surprise.
Paint it's balls red. Howed Tarzan die Picking cherries.
Because in the animal kingdom 6 inches just wont do
6 inches is medium 8 inches is rare.
Because they've been lied to all their lives about how long "8" inches is.