Condoms
Let's talk safe sex, or rather, safer sex through condom usage.
Always use a condom.
If you're going to suck your partner's dick (blowjob), put a condom on it first. You can use a non-lubricated or flavored condoms for this. If you get semen (cum) in your mouth, you could contract an STD or HIV. If you have a sore throat or small cuts on your gums (say from brushing your teeth), there's a risk of HIV going from the semen into your blood stream.
If you're using a sex toy, put a condom on it first - dildo, butt/anal plug, or cucumber. Remember, don't switch the toy from one person's body to another, until you put a new condom on it.
The bare mechanics:
1. Make sure your condom is fresh. Condoms have expiration dates like your milk, and while a mouth full of sour milk won't kill you, a broken condom can lead to a disease that can. If you're not sure if your condom is good, GET A NEW ONE. It's okay to splurge.
2. The dick you're covering needs to be hard, otherwise the condom might come off during sex. Sorry to add to the pressure there, fellas.
3. Being creative is great. But if you're going to open the condom package with your teeth, make sure you don't accidentally rip the condom.
4. If your dude is uncut (not circumcised or snipped), pull back the foreskin first for a better condom fit.
5. There is a wrong side and a right side when unrolling a condom, so make sure you're putting on right. If you like the light off during sex, turn it off after you make sure the condom is on. Which are you more afraid of? Him seeing your love handles, or putting on the condom wrong and accidentally picking up HIV or another STD?
6. Pinch closed a half-inch of the condom tip when you roll it down the penis. It will help stop air bubbles that can burst the condom during sex.
7. Unroll the condom all the way. It should unroll all the way to the root of the penis, by the balls. There are larger condoms available, and we're all very envious, Mr. Hung-like-a-horse.
8. Latex condoms hate oily lube. They break down and rip. If you use lube, and you should because dry condoms break, use water-based lubricants.
9. Like gymnasts, you want a clean dismount. When you pull your dick out of your partner, hold the condom at the base by your balls so it doesn't slip off. Try to pull out while you're still hard so there's no chance of gaping and leaks. It would suck if you went through using a condom only to spill semen into your partner at the end.
10. THROW THE CONDOM AWAY. Don't use a condom twice. Don't go sloppy seconds and use a condom that you've used but not come in, or used by someone else. If you've used your condom in someone's ass, don't use it in their vagina and vice versa. Just because you're going ass to ass to ass, doesn't mean you use the same condom. New ass? New condom.
Practice. Practice. Practice.
It's only your life, right?