How do you know if someone wants to have sex with you?

The only way to know for sure is to ask them, or for them to tell you.

That might sound like an annoying answer, but it's the honest one. You can't reliably tell from body language alone whether someone wants to have sex. People flirt without wanting sex. People are physically affectionate without wanting sex. And some people freeze up or go quiet when they're uncomfortable, which can look like they're going along with it when they're actually not.

There are signs that someone might be interested: they're physically close to you, they're flirting, they're making eye contact, they initiate touching. But none of those things are a green light on their own. They're hints, not consent.

The clearest way to know is a conversation. It doesn't have to be formal or awkward. It can be as simple as "Do you want to?" or "Is this ok?" If the answer is enthusiastic and clear, you're good. If there's hesitation, silence, or anything that isn't an obvious yes, stop and check in.

If you're worried that asking will "ruin the moment," it won't. And if someone makes you feel stupid for checking, they're not the right person to be doing this with.

The only way to know for sure if someone wants to have sex is to ask them or for them to tell you.

You cannot tell for certain from body language. Some people flirt without wanting sex. Some people go quiet when they are uncomfortable, which can look like they are going along with it.

The easiest way is to ask. It can be as simple as saying "Do you want to?" or "Is this ok?" If the answer is a clear yes, you are good. If there is any hesitation or silence, stop and check in.

Asking does not ruin the moment. It shows you care.