You crazy? That's like saying you only want the cumshot.
Surely you want to flirt with a girl first. Tease her. Let the sexual tension grow for weeks or months until it becomes unbearable. Until every fibre of your collective beings starts to ache for the other. And then when it finally happens, surely it can't be over in less than a minute. You want to drag it out. Make sure you did every damn thing you've been dreaming of all these weeks.
And then, and only then, when you're both tired and weary, but completely satisfied, you go for the cumshot.
Too bad the emptiness comes back just seconds later.