This is more amazing than the title makes it sound. This isn't talking about the "Father" of the fly, but a sperm that entered the egg after it was fertilized. Non-genetic inheritance... very interesting. I hope it can be replicated.
Double-edged sword. On the one hand, I'm only going to marry a virgin now. On the other hand, there might already be kids walking around out there who resemble me.
More seriously, I love research like this that challenges existing understanding. Of course, if it holds true for humans this certainly opens up a Pandora's Box of sorts (which is what I was aiming for in the above comment).
http://newsroom.unsw.edu.au/news/science/semen-secrets-how-p...
Otherwise, see what one could achieve by leaving out the flies in the headline altogether, leave it to the Brits:
Your baby looks like your ex? This research is scarier than Alien http://www.theguardian.com/commentisfree/2014/oct/02/baby-lo...
Could previous lovers influence appearance of future children? http://www.telegraph.co.uk/science/science-news/11133203/Cou...
So I guess we just made it half-way through the science news cycle: http://www.phdcomics.com/comics/archive.php?comicid=1174