Same here biglips even though dd only has 2 teeth she can still make a rather large dent in my leg, arm, cheek .
I say no everytime she does it and remove her straight away but not sure what else to do really
Say 'no biting' firmly and look her in the eye at the same time. Repeat and repeat is all you can do at this time. At 9 months she is far too young to understand any sort of 'disciplining' for this behaviour and isnt really deliberate 'naughtiness'. My DS had a little phase between 10ish months - 16 months, this is how we dealt with it and its not a problem now.