What if I want to sleep with someone who doesn't want to?

what do I do if I want to sleep with someone but he doesn't want to sleep with me
what do I do ???

You're only 13. So if you want to have sex with someone, you need to have a talk with your parents. They need to know about this.
You're WAY WAY WAY too young to have sex yet. Wait until marriage.
And also think about the responsibilities and consequences of having sex.

You can get STD's. You can get pregnant. And if you don't love this guy, then you shouldn't even be thinking about having sex with him.
And even if you do love him, it's still not okay. You can show him you love him other than physically. And you two can have fun together other than sexually. Take your time and grow up and save sex for marriage.

And if he doesn't want to sleep with you, then there's NOTHING you can do about it.

Get over it.

you can't make someone sleep with you sweetie.