Maybe I'm weird, but when I read a lemony smutty scene, I like it when the author takes time to describe how a person acts and sounds at the moment of orgasm. Because to go through all that foreplay and an intense sex scene just to say "and then they sailed over the edge and relaxed" feels like a cop-out to me.
I think peoples' orgasms are as varied as they are. Why not describe that? What if a quiet character is a loud feral beast in bed? What if a loud, boisterous person is quiet in bed?
Am I strange, or do others share this little frustration too?
Now, one thing I want to point out before I leave this behind is if an orgasm has already been detailed once in the story, that doesn't mean an author has to detail it EVERY time unless maybe it's one person with different people. A woman who doesn't get off with one guy might have multiple orgasms with another man, and yet another guy could give her big boomers! So use your imagination there.