Saw somebody was asking about Yai and Mangkorn's labels from the book so I put what I remember below (although can you really spoil a book that's basically 0% plot and all sessy times? 🤷🏼♀️)
The book doesn't expressly label them (it's basically a PwP and....I don't wanna say not good, but it's trashy (affectionately) and not really that good). They both dated/slept with/are interested in/and are constantly hit on by women exclusively before they have their night together. They both seem like they do pretty well for themselves and have no trouble finding partners.
I guess maybe you could say they're bi? They don't seem bothered at all that they slept with each other because they're both dudes (it was both their first time being with a man when they slept together that first time). Yai is upset that he slept with Mangkorn (and liked it) because he hates him and views him as an enemy/rival (and also because his terrible plan backfired on him so spectacularly) and Mangkorn is totally unbothered that he slept with Yai and is actually excited/proud. The only time Mangkorn gets upset or offended is when Yai tells him that he was bad in the sack the next morning (and he proceeds to make Yai eat those words....again)
But jokes on Yai because once he got Mangkorn's D he can't get it out of his head (and he does try with his sorta girlfriend he has).
Not gonna lie, I read BigDragon a long while back, so I may not remember everything 100%, so if someone who's read it more recently needs to add or correct anything, please feel free to! I hope this answers your question.
