(I don't think there are any spoilers here for anyone who seen up to season 3, but I'm not certain. If you're really spoiler adverse, you might want to avoid this.)

So last night, Mr. Ivriniel and I finished watching Game of Thrones season 3. (Yes, we're a bit behind.) In any case, I've already read the books, so I'm a bit farther along. All the talk about blood magic in the season 3 finale got me thinking:

By the end of things, the Mad King was only able to have sex after he saw people burnt alive. We know that Daenerys was born on Dragonstone after her's father's death, and the rebellion was over. We also know that the Mad King had Rickon Stark burnt alive, right at the beginning of Robert's Rebellion. Was Daenerys conceived the night Rickon Stark died?

We also know that King Aerys had at least a passing familiarity with the red god, as Thoros of Myr was send to introduce the religion. Aerys didn't adopt the religion, but he might well have been interested in their rituals, especially when it came to burning people to death.

We also know that the blood magic of the red god places a premium on those with the blood of a king, someone like Rickon Stark, direct descendant of the last King in the North, Torrhen Stark.

So this had me wondering: Was there more to the burning of Rickon Stark than just the Mad King getting his jollies from it? Was he trying to perform blood magic? Is Daenerys the Mother of Dragons because of blood magic her father performed?

It is suspected that the Tragedy of Summerhall which killed Aerys's grandfather Aegon V, was caused when Aegon V did something to attempt to bring back the dragons. What if Aerys shared his grandfather's obsession?

Or did Aerys just accidentally invoke the magic of the red god when he burned Rickon Stark?

Anybody have any thoughts?

ETA: And for that matter, if Jon Snow is actually Rhaegar and Lyanna's son, he would have been conceived around the same time. What if this bit of blood magic affected them both? Both Dany and Jon's mother's appear to have died in childbirth, which might have been another price of any blood magic spell that was used.