Firthy, she was 12 years and 13 months. and everyone expects her to be strong enough and adult enough to suffer what would have been a HORRIBLE experience because a big, dark, hairy millionaire couldn't be adult.
Remember this child would have heard all your jokes too and it would be perfectly reasonable in her mind to join in the fun. You are like the DJs who rung the London hospital: All good fun, who cares about anyone else.
