Their latest excursion? A horse and buggy ride in Central Park.
Sienna was also snapped the next morning leaving Jude's apartment to go get coffee.
And let's not forget that the twosome also spent Thanksgiving together.
Reps haven't confirmed the reconciliation, but it sounds like these exes are so on!
Will Sienna be spending Christmas with Jude?
He didn't rule it out when discussing his holiday plans during the Sherlock premiere.
"I'm going abroad...somewhere hot," he told E! News. "I'm going to eat fish and hang out with the babes."
Babes? As in the plural form?
"My children," he added, without mentioning whether Sienna would join them.
Wonder if that includes his latest little one, Sophia, whom he fathered with model Samantha Burke this year?