This story is actually quite cute, in a way! Kirsten Dunst is a fully-grown adult woman now, and has kissed many people in many films, but she was famous long before she was old enough to have romantic feelings for anybody. When girls are a certain age, all boys are icky and disgusting - even if that boy is Brad Pitt, and he's the poster star on your friends' bedroom walls.
Dunst was only eleven when she was required to kiss the adult Pitt on the set of 'Interview with The Vampire' (if you haven't seen the film, we promise it's not as gross as it sounds). While most girls her age would have been thrilled, Dunst thought it was 'disgusting,' and says she didn't kiss anybody else on or off screen until she was sixteen. Looking back, it was a strange thing to be asked to do. Surely the director could have thought of a way around it, as we've seen in other films?