Misused condoms are not very effective. Condoms are a great method of disease control. This applies to oral sex. Although the chances of catching some diseases is decreased with oral sex, there are still plenty of sexually transmitted diseases going around and many of them can be transmitted through oral sex. You would be wise to consider condoms for oral sex.
Anal sex is a highly risky practice.
Condoms should be used for anal sex to prevent disease transfer. Anal sex should also include a condom safe lubricant. Petroleum jelly, baby oil, and many other products are NOT condom safe. More on this in our lubricant or non-lubricated category. You are supposed to buy condoms.