Rodan

I don't really care who or what kind of giant whatever finds the tiny nude couple. The giant could be human, animal, monster, predatory plant, robot, or alien. The couple might be normal sized and they run into a giant? A giant woman might work much better then a giant man, or maybe a giant couple might work, but you might do one video of a giant man finding them just to see how it sells. The giant should be crazy, curious, or cruel. Maybe the giant could put the nude Ken and Barbie in a dollhouse, or in a terrarium filled with carnivorous plants, frogs, and snakes. Maybe they could make love on a spiders web, in a birds nest, in an insects nest surrounded by huge eggs, in a spaceship, on an alien world, in a giant college classroom, in a haunted house, in a laboratory, or in the Bermuda Triangle? Maybe they could make love in a cage at a pet store, at a restaurant, or someplace where a lot of people are.

A real life attractive couple might work better than two actors off the street, then again, who cares. A nude lesbian couple scissoring each other might work too. If you want to get really kinky, make the tiny nude guy and girl a brother and sister, or a mom, and her son. If you go the mom, son route, make sure the mom is a hot looking milf, and the son is practically hairless and young looking, but legal. Also, as the nude couple make love, before they climax, have a shadow come over them as they look up and moan and scream together. Maybe follow it up with, "Look what I found, a breeding pair." or "Burp!" at the end. These are just suggestions.