"Now only because this is a special occasion….To all my fans, for your loyalty and support, I thank you. 200,000!!!" she captioned the photo of herself cozying up to her husband of 11 years.
The Crazy Ones star, 36, was celebrating reaching more than 200,000 Twitter followers after joining the social media site in October 2013. Gellar quickly caught on to the new platform and frequently shares selfies from the set of her CBS comedy with costars Robin Williams, Amanda Setton, Hamish Linklater, and James Wolk.
The famed Buffy alum has also shared some pictures with her former Whedonverse costars like David Boreanaz, Seth Green, Michelle Trachtenberg, and Tom Lenk. But this is her first social media pic with her husband by her side.
Prinze Jr., 38, and Gellar met on the set of 1997's I Know What You Did Last Summer and were married in September 2002. They share daughter Charlotte Grace Prinze, 4, and son Rocky James Prinze, 17 months.
In August 2013, Gellar opened up about her marriage to Wonderwall, admitting, "It's work. You have to work at anything. It's any relationship in your life. You have to nurture it and take time with it."
Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!