pleas epost in the std community, i will give you full advice there.
Yes. If your partner has an STD he can most certainly pass it on to you through anal and oral. If he doesn't have an STD he can't give one to you.
I don't know about std's but HIV is passed very easily through anal sex because the anus sometimes rips and tears, leaving open wounds and exposing you to the blood and allowing your semen into her blood stream. But it is very enjoyable if you are in a monogamous relationship and know your partner is clean.