From Getty at the premiere of the movie RV.
They have been seen together before. Kristen Chenoweth is also believed to be the inspiration for a chracter in Aaron Sorkin's new show "Studio 60 on the Sunset Strip".
From the New York Daily News:
""West Wing" creator Aaron Sorkin and "Wicked" star Kristin Chenoweth have rekindled their romance. The pair, who have been apart working for about six months, Krazy Glued their lips together on the red carpet for Chenoweth's new flick, "RV"...""