Went on date to a bar/restaurant with a girl last week. I can tell she is into me by the tone of her voice and texts before the date and during the date because she is showing signs of adoration.

We left the place and I asked her back to my place for a few beers and she blind sided me with ASD "I don't think so, I wouldn't want to give you the wrong impression".

I didn't know what to say so rather than saying something stupid I just said OK and kissed her. She was into it. Then I said bye and walked away.

What would have been a good response?

EDIT: a word was out of order