Then head on down to http://amothea.slashcity.com/db/index.php whose fan-fiction writers will certainly put that right for you.
*Legolas twitched beneath him and Boromir looked up wickedly. Closing his lips around the tip of Legolas' cock, he suckled hard while massaging the sac. Legolas' eyes widened and he yelped softly, which meaning eluded Boromir. White, hot cream shot from Legolas' cock and Boromir gave in to his curiosity, licking the hot cream from the Elf's stomach.*
Not just for LOTR fans either. Oh no, there's Harry Potter, Battlestar Galactica, Star Trek, Highlander. A veritable gay sex nerdfest.
Just a word of warning from the website *If you do not like stories containing physical and/or psychological abuse, and non-consensual sex. Please find another archive*
Oh and just for the record I was googling *Samothea*, the original name for Britain - not for stories about Ron raping Harry Potter. Yeah, whatever.