Rebellious Jacob Roloff is spending time with his estranged mom— just in time for Mother's Day!

The 20-year-old made a rare appearance on his mother Amy Roloff's Instagram account on Tuesday, May 9 where he posed for an adorable photo with her and his girlfriend Isabel Rock — and Amy gave Little People, Big World fans an update about where Jacob is today.

"It was so wonderful to have these two, Jacob and Isabel, hanging out at my house for about two weeks [before] they headed out on their road trip," the Roloff family matriarch wrote in the caption. "A sense of adventure and discovering their purpose. They'll be back soon. He wants to see his nephew that'll be arriving soon."

MORE: Tori and Zach Roloff Brainstorm Baby Names — See Their Top Picks!

Jacob and his 21-year-old girlfriend are embarking on a trip across the Pacific North West and even though he quit reality TV two years ago, he's not against to filming his life because he is documenting their adventure in a new video blog.

In the first episode of the series titled "PDX —> Boise," the explained that they will be on the road for about three weeks. They're mostly looking forward to seeing national parks like Yosemite, Zion, and Yellowstone.

But it seems like the adventurous couple can cross Yellowstone off their list because they already arrived. Judging from their latest Instagram posts, they spent time in Black Sand Basin and Biscuit Basin, both of which are located in the national park.

MORE: 'Little People, Big World' Star Audrey Roloff Shares Baby Bump Update!

It's nice to see that Jacob and his mom have reconciled — especially after her outspoken son slammed the family's popular TV series in a lengthy blog post on his website. He accused the show's producers of creating storylines that were "harmful" — especially when they handled his parents' divorce.

"I saw tears in my mom's eyes and I suddenly realized that this staged 'joke', 'fake' thing was effecting real life in a profound way," he wrote.

For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!