What vampire movie is this? Please answer!?

Hi, I don't remember a lot about it, but I remember two scenes, the first scene is where these two men where in a coffin or in separate coffins sliding doing a bit where you get cremated, the other scene I remember is where this vampire girl, was making out with this guy and suddenly she begins to cut down his chest and he said what are you doing and she replied 'I want to taste every bit of you' and then they kiss and her whole tongue goes down his throat and brings out his heart and that's all I remember of it. Do you know what it is? Please reply!