Yes he is her nephew!!
No, just two daughters.
Megan Fox has not appeared 'nude' for any official photo's, movies. Paparazzi caught her skinny-dipping for the movie "Jennifer's Body" / set for release 18 September 2009.
Lori Loughlin was born on July 28, 1964.
Yes, according to IMDB, her birthdate is July 28, 1964