The young pair made a rare public appearance together to watch the England rugby match, though it looked like Cressida couldn't keep her eyes on the game for long as she was photographed staring up at the royal during the game.
Cressida Bonas with Prince Harry
The two are thought to have been dating for around two years, though this is the first time she has joined the Prince for a rugby match, prompting rumours their relationship is getting more serious.
Cressida was also seen supporting Prince Harry as he spoke at the UK's first We Day celebrations last week.
Odds of the two announcing their engagement by the end of 2014 have been slashed to just 8/13 since these two public appearances.