(For further reference, see Mean Girls.) The problem with this approach is that it misleads people into thinking that STIs are only spread through P-in-V intercourse, and that every other sex act is risk-free. During sex ed in school-if you even had sex ed-there's a good chance the big takeaway was something like this: Use condoms on penises during intercourse, or else your hookup will result in a sexually-transmitted infection and/or unplanned pregnancy and/or death.
