20 week old Bengal has peed on my daughters bed twice in 1 week?

Constructive help and advice please. She has been with us for a few weeks now, seems very settled and happy, however she peed on my 15year old daughters bed again for the second time this week, my daughter said she had started to act strange and she suspected she was going to try and do something so she kept taking her off the bed and she kept jumping back up. She was happily playing and lolling around in my daughters room prior to this, her bedroom door was open and her litter tray is always clean.