Probably the bubbliest of the cousins I have :) It seemed appropriate that there were sparkling Christmas lights behind her when the photo was taken!
Natural window light, relatively spontaneous.
Canon EOS 5D Mark II with Sigma 50mm f/1.4 EX DG HSM
EDIT: It turns out that this photo was taken by Chinsen and not me. I merely did the post processing work. We were swapping cameras at the time and things got mixed up!