You risk HPV infection, which is an STI that can lead to cancer (you probably have heard of it on commercial like Guardisal as it's a major cause for cervical cancer, but it can lead to oral cancers as well). Be sure you are 100% certain neither of you have had any other sexual partners before even thinking about doing it unprotected. There are flavored condoms for this purpose.
Age isn't a factor. What is is how many sexual partners and whether HPV has been contracted.