Looks like it's spit from now on...

The use of lubricants during unprotected anal intercourse may indirectly raise the risk of HIV transmission in the receptive partner, among both men and women, new research warns. Concern about the possibility is being raised in the form of two new studies, and revolves around the fact that HIV infection risk rises if other infections are already present in the rectal lining of the receptive partner, the study authors noted. In that light, indications that some lubricants may contribute to a generally increased risk for sexually transmitted infections, and therefore in turn for HIV, are scheduled for presentation this week in Pittsburgh at the International Microbicides Conference.

Go read the whole thing—and, hey, use condoms for anal intercourse, dopes, and you'll significantly lower/nearly eliminate your risk of HIV-infection regardless of your choice of lube. And if you're wondering about the bottle of lube sitting on nightstand right now: researchers say PRE and Wet Platinum were "the safest lubricants in terms of toxicity," while Astroglide and KY Jelly "appeared to be the most problematic." Please make a note of it. And please use condoms with partners whose HIV-statuses you are not absolutely certain about. And please don't view anal intercourse—with or without condoms—as a first date/hookup activity. And please don't be a dope.