well..like everyone has said, it depends

everyone is different, just ask the person herself.
if you have been kissing her for a while now, and she has not
protested, shouldn't it mean that she is okay with it?
but ask her just in case. try toning down on the kissing every minute, and
maybe try to express your love in different ways?
lets say treating her to a nice but not too expensive dinner, and
occasionally doing things for her. hope that helps!