The song "Venus In Furs" is about sadomasochism, which was a pretty risque topic for a record in 1967. Of course, it never got played on the radio. The title is shared with a book by Leopold von Sacher-Masoch. Severin is a character from the book who loves a woman so much he asks to be her slave. Here are a couple of verses:
Kiss the boot of shiny shiny leatherThe lyrics are accompanied by mournful and unsettling instrumentation including Mo Tucker's ominously thumping drums, John Cale's electric viola (which always sounds creepy to me), and Lou Reed's "ostrich guitar" (all strings tuned to the same note).
Shiny leather in the dark
Tongue the thongs, the belt that does await you
Strike dear mistress and cure his heart
Severin, Severin, speak so slightly
Severin, down on your bended knee
Taste the whip, in love not given lightly
Taste the whip, now bleed for me
* Actually, it was Disc 2 of Peel Slowly And See, the Velvet Underground boxed set which includes all of their studio albums plus a mixed bag of previously unreleased material.