I am so glad that you had a good time at your event. I'm sure your extra "gift" was much appreciated by the hostess. In my opinion, I don't think it was "sucking up" to bring something additional - I would regard it as very considerate and thoughtful. It only shows your desire to the members that you want to become a part of that organization.
The cheesecake sounds DEVINE - I would make it myself but I can't cook worth a DARN!