Harry and Taylor pretty much spend every waking hour together. Copyright: [rex]
Taylor's Dad is believed to be worried that the pair are taking things just an incy-wincy bit too fast and perhaps need to take it easy.
A source told The Sun: “Taylor's Dad likes Harry but he wants them to slow down and take things easy".
"He doesn’t want them to split up as fast as they’ve got together and for Taylor to end up devastated.”
Could Harry be getting ready to ask THAT question!? Copyright: [rex]
However, we reckon Mr Swift really doesn't have anything to worry about - after all, we don't think it would be possible for Harry to be any more in love with Taylor.
Plus, they have been pretty much inseparable for absolutely months and even have said the L word to each other.
Related Story: [Taylor Swift and Harry Styles stay the night together]
Not to mention all that snogging in Times Square on New Year.
There have even been rumours of a quickfire wedding on the horizon!
OK, so we are starting to see Mr Swift's point...
Nonetheless, we reckon Mr Swift should just relax and get round to taking Mrs Swift to Phillip Treacy for a nice hat.
Talking of nice hats...
A fan posted this photo on Twitter. Copyright: [Twitter]
Harry and Taylor are currently holidaying in the British Virgin Islands - their third getaway in just two months.
And no, Harry still hasn't taken his beanie hat off.