Former President Bill Clinton visited predecessor George H.W. Bush over the weekend in Houston, Texas, for their annual lunch. The two former presidents were joined by former First Lady Barbara Bush.

The presidential duo “caught up about kids, grandkids, old times and new times. And socks,” according to a tweet from the 42nd president on Sunday.

The photo included in the tweet shows Clinton gifting Bush two pairs of socks: a blue set featuring bees, and a green pair with chocolate labradors, likely chosen for their resemblance to the Clinton’s dog: Buddy.

Great to spend time with @GeorgeHWBush & Mrs. Bush in Houston today. We caught up about kids, grandkids, old times and new times. And socks. pic.twitter.com/CshV6tI5Ae — Bill Clinton (@billclinton) April 9, 2017

The gift is a callback to their 2013 visit in which Clinton tweeted that he was “envious” of Bush’s “#sockswag.”

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Bush spokesman Jim McGrath tells CBS News that the meeting was strictly a “personal, social visit.”

Enjoyed my annual lunch with President and Mrs. Bush in Maine. Envious of his "western cactus"-themed socks.#sockswag pic.twitter.com/nXJV2DGnnj — Bill Clinton (@billclinton) September 5, 2013

Bush, 92, is diagnosed with vascular parkinsonism, which mimics symptoms of Parkinson’s disease. In January 2017, he was hospitalized in the intensive care unit for two weeks with bacterial pneumonia.

“President Bush recently declared that he wants to live to be 100, and being a goal oriented person I would never bet against him,” Bush’s spokesman told PEOPLE. “He has rebounded nicely from his recent hospitalization.”