It was a Black and wide four panel I’m pretty sure the title was I’m in or oh yeah I’m in

The art style was very reminiscent of cyanide and happiness and I think I first saw it about 4 to 6 years ago. The gist of it was panel one and 2 are zoomed in panel 3 is a guy saying I’m in and panel 4 is the zoo Ed out shot to show it’s a sex joke. I don’t remember there being anything more graphic than buttocks shown