1. Get Him Alone
You can't sleep with him in a room full of strangers, unless you want to get arrested for public indecency. That's why it's important for you to get him alone before you make any moves. This isn't all that hard to do. If you're at a bar or a party, just ask him if he'd like to go someplace quiet so that it's easier for you two to talk.
2. Get Close to Him
You can't kiss him if you're sitting across the room from him. That's why you want to get as close to him as possible. If you two are watching a movie on the couch, don't sit on opposite ends of it. Sit so that your thighs and elbows are touching, so that the sexual tension is naturally created. If you feel weird getting that close to him, try watching a scary movie and pretending you need him close to you.
3. Initiate Kissing
It's not all that hard to initiate a kiss. You don't even have to be the one to move your lips toward his. Just make sure that you look into his eyes while you're talking, and keep looking into his eyes as the conversation fades away. Give him an extra push by looking from his eyes to his lips, and he'll get the hint.
4. Turn the Kiss into a French Kiss
In order to turn an innocent kiss into a french kiss, all you have to do is run your tongue over his lips. That should get him to open up his mouth, so that you can slip your tongue inside. It's that simple.
5. Climb onto His Lap
After you start a sexy make out session, you'll have to give him a sign that you want to take the next step and actually have sex. You can do this by running your hands up his thigh to tease him, whispering something sexy into his ear, or by climbing onto his lap. The latter is your best bet, because it leads into the next step.
6. Grind Your Body against His Body
If you choose to climb onto his lap, then you can grind your body against his. Make sure to use your hips! The friction will be a major turn on for the both of you. Plus, it'll make it clear that you're looking to sleep with him.
7. Take Your Clothes (and His Clothes) off
The only thing left to do is take off your clothes, or to try to take some of his clothes off. Once that happens, you're going to end up having sex. It's as simple as that!
Most boys will be interested in sleeping with you, so if you want to have sex, you can just tell him bluntly. Of course, if you'd like to be more subtle about it, you should follow this little guide.