Two people there have sex by totally entering each others bodies

I haven't felt this confused ever since my parents told me about the birds and the bees :-)

It's kind of funny to think about sex in heaven. For instance, are we supposed to spend an eternity having sex with just one person? If we all become equal after we die, are there such things in heaven as pedophilia or incest? What happens to the kinky aspect of sex once it becomes sacred? What about God? If we were created in His image, then He must like sex too, perhaps even more so than we do. And if He does it, is there also a Goddess, or does He do it with ex-mortals?

Ouch... my head is spinning...