I was, for no particular reason, thinking about Spider-Man's webbing, when suddenly my chain of thoughts slipped a couple of notches in the gear, leading to a disturbing realization I must now share with you all. It works as follows:
Peter David once commented on how much money Peter Parker could make just by patenting and selling his web-fluid. He talked about all its potential uses, from medical (sutures, stitches, and temporary casts that dissolve on their own after an hour) to law-enforcement (web-bombs that incapacitate crowds of protesters without hurting them is practically the holy grail of SWAT teams.) But, I suddenly realized, he'd left an important one out.
If the webbing is, as we've always been told, an adhesive so powerful that no human can break it, no matter how tightly they struggle, that dissolves on its own after an hour, and that won't stick to certain chemically treated fabrics, well...you could make billions by marketing it to bondage fans. "Bondage gear in a can--spray on, and they won't move for an hour."
I didn't even have time to ponder the story implications of that disturbing realization, though (although it involves an unscrupulous chemist, Peter realizing he'd never actually patented the web-formula, and a lot of public humiliation when crooks start referring to him as "that kinky sex vigilante!") because my brain had already skipped to the next logical step...
Peter and Mary Jane must have used his webbing like that already.
I mean, they were newlyweds, Mary Jane's always been presented as a fairly freaky chick, insofar as the Comics Code can present such, and every couple goes through at least one "it seemed like a good idea at the time" sexual encounter. At some point, she must have decided to use the web-shooters on Peter to keep him from going out and fighting crime while she was in the mood. At least once.
And you just know the whole rest of the day, when Peter was webbing up super-criminals, he was getting weirded out in a big way.