I don't have to worry about HIV   because   I'm straight: Anyone (gay, straight or bisexual) who   has unprotected vaginal, anal or oral   intercourse without condoms is at risk   for HIV.  It's safe if you pull out:  Pre-cum comes out of the penis  before ejaculation, so you can become   pregnant or infected even if you pull out.  Someone is probably "clean" if they have good hygiene and no visible sores: You can't tell if someone had HIV by the way they look.  It's safe for my partner and me to have unprotected sex because we're monogamous: Even if your partner is honest with you, you're still being exposed to every other person they have been with before you. It's important to get tested. Your partner may be infected and not know it. Then there is also the issue of pregnancy, which can only be avoided with the use of birth control such as the pill or condoms.  It's dangerous to touch someone with HIV: You can't get HIV through casual contact such as kissing, hugging, sharing a fork or spoon, sitting on the same toilet seat or shaking hands. .  I'm on birth control pills so I'm safe: The pill is 98% effective at preventing pregnancy, but only condoms can protect you from HIV or other sexually transmitted diseases..