Be dependable. If you want to make your girlfriend want to have sex with you, then you should show her what an amazingly dependable guy you are.
Give it time. Some guys can be ready to have sex with a girl in the time it takes to down a beer, while some girls can take months, or even longer, to decide that they’re ready to make love.
Do not act like you are obsessed with sex. Let’s face it — if you’re a male of a certain age who is desperate for his girlfriend to have sex with him, then you probably are obsessed with sex. But that doesn’t mean you have to make jokes, innuendos, or even blatant references to sex all the time.
Be loyal. If you want to make your girlfriend trust you, then you have to be loyal to her. She’ll never have sex with you if she thinks you’re talking to or checking out other women, or even hanging out with other women.
Treat her like a lady. If you want your girlfriend to have sex with you, then you should treat her like a lady, not just like someone you want to hook up with. To do this, you have to be a gentleman and be courteous, kind, understanding, and generally admirable.
Take her out on romantic dates. If you want to build the sexual tension, you have to build the romance first. Make her feel special by taking her out, dressing up, and picking a romantic spot for dinner, a drink, or even just for stargazing. You don’t have to do anything corny or out of your element to make her feel special.
Don’t ever pressure her. If your girlfriend says she’s not ready to have sex with you, then you shouldn’t pressure her. Don’t try making any arguments — saying things like, “But we’ve been together for so long,” “Everyone else is doing it,” or “But I really, really like you,” isn’t going to make her feel any better.