She probably would have pressed the princess issue further (and maybe had some of Rebecca's ice cream too), if it hadn't been for that last part. Mabel freezes for a moment as Rebecca explains. Then she balls up her fists excitedly.

"Pegasi? You mean pretty and fancy horses with wings right?!" She really looks like she might start jumping up and down. "I always knew something better would happen to make up for unicorns... I just didn't know when."