Question: what is the relationship between jon snow and sansa stark like?
Answer: Jon and Sansa grew up as half-brother and sister, and are now cousins. ... As the series premiere reminds us, Jon is actually Aegon Targaryen, son of Lyanna Stark and Rhaegar Targaryen. This rearranges Jon's relationships. Jon is Sansa's cousin (as his mother was Lyanna Stark, sister to Ned) not her half-brother.