There are mainly two types of viruses which cause genital warts. They are the HSV-2 type and HPV type. Of these, HPVs are of more than 70 types and some cause cervical cancers while the rest causes genital warts. What you read is right and HPVs can be transmitted through skin to skin contact. An oral sex is sufficient to transmit the virus to you resulting in genital warts which can be seen soon. In most cases of HPV infections, genital warts will appear at about 3 to 5 months after getting infected. Also, HPV can stay dormant in affected persons and those people will act as carriers and transmitters of virus without themselves knowing as carriers. Infection is noticed once when one starts getting genital warts or cervical cancer. Unfortunately, there is no complete medical cure for HPVs. But your body immune system will fight it and make it dormant for years. It happens after getting warts and warts also will go off by their own. Hope my answer helps. Take care.