Some authors handle sex batter than others. With good authors like Dom or Comsie, sex is merely part of the plot. With less experienced authors, it can become a distraction.
Gay fiction has evolved quite a lot over the years. Years ago the only gay fiction that you could find were pulp paperbacks that were really just literary porn.
When gay fiction made it to the net during the ninties, quite a lot of it was still what a good friend of mine calls a "one handed story". There's loads of stuff like that on Nifty.
Around 2000 a cadre of net authors arose that elevated the genra. The Eggman, Cosmie, Dewey, Driver and others began writing gay fiction that was more about the story than sex.