Good thing Luke and Leia learned they were brother and sister before it was ... you know ... too late. Because otherwise they might have ended up with a bouncing baby Jedi. And that would have been oh, so wrong.
Thanks to theinbredjedi, however, it turns out to be oh, so right. Check out the first disturbing but funny adventure of Gree-Morr Skywalker, the inbred Jedi, and be glad those two lovebirds found out the truth in time.