In fact, the spouses of nearly 12 years haven't walked a red carpet together since July 2007. So when The Crazy Ones actress shared a selfie with her hot hubby on Wednesday, it took fans by surprise.
Gellar, who joined Twitter in October 2013, hinted that she had something up her sleeve earlier that day. "Come on guys get me to 200,000 maybe I have something special in return......" she tweeted.
The mom of two exceeded that number by 2,000, and to celebrate, she posted a picture with Prinze Jr. "Now only because this is a special occasion....To all my fans, for your loyalty and support, I thank you. 200,000!!!" the CBS star wrote in the photo caption. The selfie was retweeted more than 1,350 times.
Gellar, 36, and Prinze Jr., 38, are parents to daughter Charlotte, 4, and son Rocky, 18 months.
As Gellar works with Robin Williams on her hit CBS sitcom, Prinze Jr. is reprising his guest role on Bones opposite David Boreanaz, his wife's former Buffy the Vampire Slayer co-star and love interest.
Just don't get used to seeing him on the small screen. "I can't put in 15 hour days. I would never see my kids again," Prinze Jr. told E! News Monday. "I'm a full-time dad. I'm a part-time actor. I just can't do it."