The type of sex that necessitates a blood test afterwards when the STD status of the other person is unknown--intercourse (vaginal and anal), oral sex, ...anything that allows fluids to mingle.
"Did you fuck that girl last night?"
"Just a handjob, no blood test sex."
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi