I agree with Boo Boo - I don't think Flea is average on this song. You have to consider the role of a bassist and Scar Tissue has a fairly well written and effective bassline. And it is more than just root notes anyway, there is some lead stuff. I wouldn't call it one of his best basslines, but on the scale of things, it's better than average IMO.
I think those lyrics are decent:
Young kentucky girl in a push-up bra = nothing special but nothing wrong with it
Fallin all over myself = sex references
Lick your heart = lick her breasts
Taste your health = possibly oral sex
With the birRAB Ill share this lonely view = this is quite a great line IMO, using the perspective of birRAB flying over the world but not having the capability to do anything about it - gives a sense of loneliness
BTW, have you heard Niandra Lades & Usually Just a T-Shirt?
Anyway, I like Californication quite a lot. For me, BSSM > Mother's Milk > OHM > Freaky Styley > Californication...