I think my definition of hooking up is somehow different than the definition used by US Weekly in their latest issue. They said that Miley Cyrus spent the night at Jared Leto's house earlier this month. Therefore they are hooking up. I know that grammar is not my strong suit. Hooking up would tend to make one believe they are hooking up as in they are a couple. If they said Miley and Jared hooked up then I would consider that to be an accurate statement. The fact that Jared is in Europe and had sex with two different women on two consecutive nights this week would lead me to believe that he is hooking up with lots of people but is not currently hooking up with Miley Cyrus who is on a music tour but is probably using that as a cover for a sample of the various strains of pot throughout the world. I think the headline they hooked up is much more juicy than one where they are hooking up. The only reason I see for the hooking up headline versus the hooked up headline is this now allows the editors to have them breaking up in a few weeks because their schedules conflicted and didn't have time to hook up with each other enough.