The One Direction hunk - who was introduced to Kendall Jenner by their managers in November - ''charmed'' the former Olympic champion with conversation about the sport which Bruce is a big fan of.
Although Harry and Kendall have denied dating they have been spotted out in recent months and it was believed the singer popped into Bruce's Californian home days after the pair went for a meal in Hollywood on November 25, 2013.
A source told the Daily Star newspaper: ''When Harry and Bruce met at his Malibu home a couple of weeks ago, Harry charmed his way through the visit by talking about golf. Bruce is very protective when it comes to his daughters.''
Bruce recently separated from the Kardashian matriarch, Kris Jenner, with whom he has daughters Kendall, 18, and Kylie, 16.
The girls appeared on reality show 'Keeping Up with the Kardashians' from a young age and were catapulted to the spotlight alongside their famous half sisters Kourtney, Khloe and Kim Kardashian, and their father who also features on the hit TV series.
''Protective'' dad Bruce also understands the additional pressures of being in a relationship while in the limelight.
The source added: ''He's experienced how difficult it's been to have a relationship in the public eye with his estranged wife Kris.
''Harry wasn't in for an easy ride but things couldn't have gone better, all thanks to golf.''