Pictures of Stella McCartney in a bikini hit the tabloids this month (no, I shan't link to them) and it got me thinking... why doesn't she hang around with Paul more? Separately they're a bit hard to take, but together they're an invincible sweet father-daughter team. What is it that's so very sweet about dads and daughters? Check out the assortment I've rounded up for you and if you can think of some more, do tell! Click on Chelsea and Bills' big American faces to start the gallery.