To him, it meant everything. The meeting of their lips, his body around the other's, and the wails and cries that made it so real.

And he was conducting an experiment. That was all.

So that one night when the schemer confronted him while pinned under him and asked if he knew it was just an experiment, Demyx could only give a sly smile.

"Of course. Nothing at all. What else would it be, Zexion?" He replied, because he knew this was everything, and you mustn't probe the subject too much.

And he let out a moan of delight as Zexion bit down on his shoulder.

Because it was just an experiment, and he knew that.