Goodgulf:
Sassy Bottoms was outed not long ago. The artist is Bobby Beausoleil and the company was run by his wife (who died a couple of years ago).
Bobby Beausoleil is currently serving a life sentence for his role in the Manson family murders.
Yeah, it freaked me out too, but a recent showing of Bobby Beausoleil's work included two of the three panels of "Cupid and Venus" - one showing a familiar looking Cupid being scolded by a familiar looking Venus, the second showing Cupid (whose bottom is now reddish) being kissed by Venus - and I assume the middle panel would show Cupid's bottom becoming red.
This is pretty bizarre, I must admit that I never considered that "Sassy Bottoms" would turn out to be a rather notorious convicted murderer, indeed a follower of Charles Manson.
From what I could determine, there were only two panels of "Cupid and Venus Love Chastised" drawn by the artist, thus the spanking in that particular scenario apparently was never explicitly shown.
However, there is a well-known artwork featuring a somewhat older-looking Cupid being spanked by Venus for presumably failing to aim his arrow properly. All of those cutely adorable yet sweetly naughty spankees, created by a convict whose other drawings primarily display his starkly dark side--Yikes!!

--C.K.