But there’s a good lesson to be learned:
It is said that two’s company, three’s a crowd. That could be particularly true when you’re sharing one end of a small boat. But for Bruce Willis, his ex-wife Demi Moore and her young husband Ashton Kutcher, it proved no problem at all.
While Miss Moore canoodled contentedly with her beloved on one side, action man Willis was happy to concentrate on his fishing.
Miss Moore, 44, and her film actor husband, 29, had joined 52-year-old Willis at his home in the Turks and Caicos Islands for a holiday to celebrate the completion of Live Free or Die Hard, his fourth film featuring hard-bitten detective John McClane.
Also present in the Caribbean were Willis and Miss Moore’s daughters Rumer, 18, Scout, 15, and Tallulah, 13. Celebrity photographer Annie Leibovitz was invited along to record the break for the latest edition of Vanity Fair, which goes on sale today.
Miss Leibovitz - whose portrait of the Queen also features in the magazine - went out on the boat trip and was no doubt delighted with the shot of Willis reeling in his catch while Miss Moore cuddled her man.
Willis told the magazine he sees nothing unusual in the relationship. He said: “It’s hard to understand, but we go on holidays together. We still raise our kids together - we still have that bond.
“Demi is the mother of my children and Ashton is the stepfather of my children. I’m thrilled that Ashton turned out to be such a great guy.
“I love Demi, and I know she loves me.”