Re: Oral sex and Chapped lips
Oral sex is not an established route of infection. In the history of the HIV epidemic, there has not been one confirmed case of HIV transmission this way. You will not be the first.
If there is severely poor oral hygiene (meth mouth), recent dental surgery, or other conditions where there are large open, bleeding wounds in the receptive partner's mouth, then there is a theoretical risk. But you don't even remotely fall into that category- it doesn't matter what the conditions of your lips were in.