George H.W. Bush's spokesman says that the duo often catch up, noting that this weekend's trip was "purely social"

Bill Clinton Pays a Visit to George H.W. Bush: 'We Caught Up About Kids, Grandkids, Old Times and New Times'

Bill Clinton headed to Houston, Texas, over the weekend for a presidential reunion.

In a tweet on Sunday, the 42nd president shared that he had met with his predecessor, George H.W. Bush, and his wife, former First Lady Barbara Bush.

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Bush spokesman Jim McGrath tells PEOPLE that the duo often catch up, noting that this weekend’s trip was “purely social.”

“Great to spend time with @GeorgeHWBush & Mrs. Bush in Houston today,” Clinton, 70, captioned a Twitter photo of himself handing Bush, 92, a small gift. “We caught up about kids, grandkids, old times and new times. And socks.”

A source tells PEOPLE that Clinton presented the 41st commander-in-chief with two pairs of socks: one with bugs on them and one with dogs. Clinton has spoken about bugs being some of the “greatest cooperators” in the world and is a longtime dog lover, having owned two chocolate labradors.

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The insider said Clinton spent about two hours at the Bushes’ home in Houston for lunch, a visit the Arkansas native tries to make annually.