His build, his complexion, the way he walked around at Gay Pride in his thong. Mitchell likes the way he looks in his Lycra. And they're always at it. When the narrator, Mitchell, first encounters Raheim, the reader is privy to a full body tour starting with his protruding nipples, and ending with his baggy khakis, which he is, reportedly, wearing well. It's objectification in the best sense of the word.
Romance novels written by straight women are very different in the way they eroticize men's bodies.
You don't hear about it until they go to bed. Even then it's diffuse. But she doesn't find women's attraction to male homoerotic fiction surprising, considering the impossibly high standard of beauty to which women's bodies are often subjected. I live in one of these bodies. However, readers in search of escapist fiction where the whine of inequality is obviated might be more likely to find it in male-male love stories.