Some kind of fetish (sexual orientation), with the scientific name is for folk to it, the GTS (stands for Giantess or big) is said to be; the fans of this, like that, with people much larger than themselves, or individuals, small to small 10 CM face to face. And now, this is what they want them to happen, happen or what they want for a small do different. also, like all other sexual orientation, etc. here, too, straight up. gay and two gay, gay there.
you already have examples of this, in the movie, childhood like .... and film today, like the monsters against aliens (Monsters vs Aliens) or Honey, I Shrunk The Kids you've seen; can also likely there are other, you can go to YouTube to access. The most famous film made with the content of Attack of the 50 Foot Woman.