But He Also Did:
Fetish comics. Ones that had an oddly familiar theme ...
Back in his Marvel days, Ditko shared a Manhattan studio with his longtime friend and bondage/fetish cartoonist extraordinaire Eric Stanton. When deadlines were tight, Stanton would toss some penciled butts and boobs Ditko's way to provide the inks, in return for a 50-50 split of the proceeds and the chance to draw some porn, because hey, porn.
Now Ditko, being the aforementioned co-creator of Spider-Man and all, didn't like to talk about his early collaborations with Stanton. But those with way more legit nerd cred than ours have examined the evidence and found telltale signs of Ditko's inking style in plenty of Stanton's comics. Even better, though, is the obvious overflow between the two artists' work. Here's "another bondage classic by Eric Stanton," Sweeter Gwen:
Aw, ain't that sweet?
It was published right around the time that Peter Parker had a girlfriend named Gwen. And here's a woman's spider-sense going off as she gets all bondaged up (bottom-right panel):
She's wearing a leather bustier, yet she's surprised when knots come into play.