HPV can also cause oral cancer. The odds of transmission in any other vector besides oral sex are low, since it requires skin to skin contact, but unless you're as celibate as a nun and never plan to kiss anyone either, it's probably not a bad idea.
For that matter, the HPV shot is not recommended for adults, since most of us have probably already been exposed (unless, again, you're a nun.) It's only recommended for pre-adolescents, under the likely true assumption that the majority of them will NOT be celibate. No one says that you, presumably an adult, has to get the HPV shot.