You hit on one of my BIGGEST fanfic pet peeves, the Lubeless Fuck. I'm sorry, but unless your ass is as wide-open as the Holland Tunnel, there ain't NO WAY you're getting that dick in it without SOME kind of lube. And I don't mean a handful of spit, either. Spit is NOT a lubricant for anal sex. Unless you've got a really wet drooler. ;)

Another one for me? Unrealistic Sexual Positions. I had a writer send me a story wherein the two guys started out fucking while standing up in a bathtub. WHILE STILL ATTACHED, they climb OUT of the tub, WALK to the sink, where they continue. Please note the person doing the fucking was SHORTER than his partner. As Adam would say, "It ain't gonna happen."

I write from experience. If I haven't tried it myself, then I've talked at length and in great, gory detail with someone who has (because I will NEVER let someone put a fist in MY ass). Also, it's good not to get all your info from a single source. Variety is the spice of life. ;) I can always tell someone whose only experience is gay porn videos, romance novels, or The Joy of Gay Sex (or other overviewed instructional manual).

As for dirty talk? Depends on the character. Some strike me as "talkers" or "yodellers," while others may be the silent type.