On one hand, these two were destined to be from the first few episodes of The Big Bang Theory. Yet Penny and Leonard are from two totally different worlds, and this was a ship that most never actually expected to happen. The scientist and the aspiring actress/waitress? Who would have thought! Somehow, their having so little in common doesn't matter, and their relationship (and now marriage!) is full of love, laughter, and enough happiness to make us all ugly-cry. And we have.