I Thought I Was the Male Partner, but It Turned Out That I Was the Male Lead's Spouse? !

I'm short of books and want to read a short story about two men! ! The subject matter is random, the ending

Looking for Short Stories with Two Male Protagonists

I want to read a book like "Big Tail Wolf, Slow Down". Can you recommend some dual-male protagonists with fewer words? It's best if you can read it in less than two hours, please.