Remember when Cersei said that she'd have more success seducing Stannis' horse than the man himself? I'd love to see Cersei actually TRYING to seduce Stannis, and completely failing because it's STANNIS. (And if you're worried about realism, well, she did not have much to worry about, because if Stannis told Robert about it, Robert wouldn't have believed him that anyone would try to seduce Stannis anyway. ;))

I'd write it myself, but I can't write Cersei for my life, so I'll just have to beg one of you wonderful Lannister fans to do this. ;)