What should I do if I have the potential to spread HPV as an std, genital warts or even cervical cancer?

Love responsibly. This is 2014 and hopefully you use barrier protection except with your one-and-only-for-a-lifetime. Get immunized so as not to pick up anything else. Whoever you're with should already have done the same. And stop worrying. The only hpv lesions that result in death or mutilation are the ones that people neglect. Pap smears (her) ; checking yourself (him) are all that's required.