"August 3, 1913 I had the dream again, where I’m the alien named the Doctor and I’m traveling around the universe in a blue box. This time, it was with the beautiful blonde girl again… what was her name… oh yes, Rose." [...]
David Tennant (10th Doctor) married Georgia Moffett (the 10th Doctor’s daughter in the episode “The Doctor’s Daughter”), who is the daughter of Peter Davison (5th Doctor) and they had a daughter. None of that feels weird!