schedule
Explanation
This comic takes the mundane domestic suggestion of "scheduling sex" and pushes it to an absurd, clinical extreme.
A couple discusses scheduling intimacy to "increase frequency." One partner is initially resistant ("No, so I can don't-touch-me"), but they apparently go through with it. In the next panel, labeled "Later," we see one partner has indeed scheduled a session -- "the 7PM to 7:03 showing" -- making it sound like buying a movie ticket. When they remark that "it's really only three minutes," the other says "that includes credits."
The final panel shows the couple in bed, with one partner already asleep and snoring ("ZZZZZZ") while the "credits" metaphor plays out -- as though their intimate encounter was so brief and formulaic it could be compared to a short film, complete with a credits sequence that takes up a significant portion of the runtime.
The humor comes from the increasingly clinical and transactional framing of intimacy -- first scheduling it like an appointment, then describing it in terms of movie showtimes, and finally the self-deprecating admission that the entire event is only three minutes long, credits included. It's a relatable joke about long-term relationships where romance gives way to logistics.