The new victim who came out yesterday said that her genitles smelled like pepperment after the assault. They may have spiked the baby oil with a scent to cover the shit smells, as well as GHB or some other drug, as 'boofing' is a popular way to injest a substance. Since the rectum lining has a very high absorption rate, people often take pills or coke or whatnot and stick it in their ass. The high comes on stronger that way. So I'm guessing these deviants were drugging people with their anal lube!

It would also work well if it was oral or regular sex, I'd imagine.