Sexual intercourse with or attraction to Sonic The Hedgehog.
Why are you even looking this up?
Like, what possible reason could you even have?
You into Sonicphilia? I'm pretty sure your parents regret giving birth to you.
Same thing as Pedophilia but with fur.
A person who really likes to jerk off to these underaged beings like Cream and Tails is a true degenerate that really should yiff in hell.
Tyler: Hey dude guess what
Alfred: what is it
Tyler: I like jerking off to cream and tails being fucked. Officially have Sonicphilia. And I like baby soni-
Alfred: Gtfo of my place, you degenerate furry.