In the last episode last season, Game of Thrones finally fell the bombshell we have been waiting for: Jon Snow is not really a snow. Sam and Bran brought their citadel research and three-eyed amber visions together to figure out that Jon's parents are not Ned Stark and some random women from King's Landing, but instead Rhaegar Targaryen (the gall king's oldest son) and Lyanna Stark (Ned's sister) who was married is a secret ceremony before Jon (or should we say Aegon?) was born. So even if it means that he is not just a bastard but also the product of two very strong families, we are here to ask the very important question: What does this revelation mean to Jon and his new lover Daenery's?
Well, simply, Dany is Jon's aunt. Her much older brother Rhaegar was King Aero's first-born child, also the Mad King, which Jaime later kills. Rhaegar was originally married to Princess Elia Martell from Dorne, Oberyn's younger sister. But then Rhaegar meets a first tournament at King's Landing for the first time and is thrown immediately. When he eventually wins the tournament, he passes just over his own wife to give his winner the crown of winter roses to Lyanna, even though she is already engaged to Robert Baratheon. We can only imagine the side eye that Elia and Robert were at the moment.
A few months later, the two beloved lovers met in Riverlands, and this is where things get complicated. Many believed that Rhaegar had kidnapped Lyanna and raped her, including Robert, who decided that the right answer would be to lead a rebellion against the Mad King. But thanks to Sam and Bran, we now know that the couple were in love and chose to run together and get married. Rhaegar is eventually killed by Robert in rebellion, and Lyanna, who was found by Ned in the Joy Tower before he dies from birth, asks Ned to take her baby Aegon Targaryen (aka Jon Snow) and keep him safe.
So what does this mean for today's Jon and Dany? Well, that means they are undoubtedly sleeping with a family member. And while the marriage of Targaryens is known to be quite common to keep the bloodlines clean (Dany's mother was her father's sister, his sister), we are not so sure that honorable Jon would be able to look past it.
It also means that Jon has more of a claim on the iron throne than Dany does when he is a legitimate son of Dany's older brother, but he already agreed to bend his knee to Dany, and we're not so sure you can call your back because you just found out you're genetically the most powerful man in Westeros.