The Game of Thrones audience has known for a while that one of the most tension-filled relationships on screen was between an aunt and a nephew. Now that it's been consummated, we need to wonder if Jon Snow and Daenerys Targaryen know they're related — because, well, the secret's certainly about to come out for other people in Season 8.
Anything is possible in the world of Westeros, of course, but, for now, the answer seems to be a firm no. The friction between these two had been mounting for weeks before they finally mounted each other on Sunday night's episode. (You're welcome for that image.) And, in the footage of the scene, it seems like any familial relationship between the two of them is the furthest thing from their minds.
We've known since the Season 6 finale that Jon Snow is the son of Rhaegar Targaryen and Lyanna Stark, even if the Rhaegar connection wasn't confirmed until the Season 7 finale. And while that information is just now starting to make its way through Westeros, as of the Season 7 finale, the two people it affects most are still in the dark.
That's not to say that Daenerys doesn't have enough information to put the pieces together, however. Earlier this season, she watched as Jon was able to reach his hand out and lay a hand on Drogon's snout, which should have been a heavy indicator to her that the King in the North had some Targaryen blood. But we never witnessed anything but confusion cross her face, so, if the Mother of Dragons realized the implication, she's kept it to herself.
Also adding to the case for their ignorance is the fact that the scene was literally underscored by Bran Stark's voice saying, "We have to tell him." Which meant that they have to tell Jon Snow that he's actually Aegon Targaryen, which is the most convincing proof you could possibly have that he doesn't know.
But, even if they were aware, it's hard to know if that would discourage the relationship. Even with our omniscient, Bran-like knowledge of their aunt-nephew bond, fans have still shipped Daenerys and Jon. That might be because we're in denial about their status, or it might be because these two are not most-upsetting incestuous relationship on the show. Our tolerance for stomach-turning relationships has been raised so much by Cersei and Jaime Lannister that many fans were wholeheartedly rooting for the aunt and nephew to get together in contrast.
It's a lot to stomach, sure, but this is Westeros. Worse things have been done and will be done again.