The insertion of foreign objects into the rectum intestinum of Homo sapiens is nothing new. As you'll remember from history class, the Maya administered tobacco and hallucinogenic enemas for religious purposes, and also probably because they were bored.
On more than one occasion, a woman has asked me if I wanted to do "butt stuff" when it became clear that coitus wasn't cutting it anymore. Assplay is a logical next step in a male/female sexual relationship.
By processing the words in this sentence, you are submitting to me. You little bitch.