Zap Comix #5, 1970
After delivering some of the most horrendously scandalous bits of underground comix ever with Zap Comix #4, the Zap Collective seem significantly more reined in with this issue. Crumb's two stories are particularly benign with compared to the work in the previous issue, with both the "Mr. Natural" story and "The Adventures of Fuzzy the Bunny" almost passing as appropriate comics for kids.
Not all of the Zap Collective are completely toned down though, and instead lean into violence over sex here. S. Clay Wilson's two stories, "Lester Gass, The Midnight Misogynist" and "Ruby the Dyke Meets Weedman", feature torture, mutilation and gore to rightfully earn the "Adults Only!" label on the cover.
Robert Williams is the star of the show with Zap Comix #5, with his wonderful artwork gracing the front and back cover of the issue as well as this being the issue that debuts "Coochy Cooty".
Gilbert Shelton and Victor Moscoso provide some nice stories of their own, while Spain Rodriguez is mostly absent here. While this issue isn't really as legendary in status as the previous issue was, I think the increased mature take on transgressive comics really helps the series with some degree of longevity. Had every issue attempted to outdo the moral depravity of Zap Comix #4, I'm not sure if this series would have gone on for much longer.