A majority of women are most comfortable in relationships where the man is taller, according to a new study.
About 70 percent of women respondents surveyed by pleasure product firm Lovehoney, said they preferred taller men.
Almost one in five women said men who are between four and six inches taller are the best match, reports dailystar.co.uk.
The poll also shows that just a quarter of women and 35 percent of men said height was irrelevant when seeking a partner.
At 6 ft 3 in, Prince William, 31, is 5 inches taller than wife Princess Kate, 32.
Other couples that come close to the ideal difference include Hollywood actor Brad Pitt, 50, and Angelina Jolie, 38, and Daniel Craig, 46, and Rachel Weisz, 44 - both with gaps of four inches.
"The long and short of it is that size does matter to a lot of couples. And the height of romance appears to be when the man is five inches taller than the woman, just like William and Kate," said a spokesman of Lovehoney.