Rob Kardashian enjoyed the day at a fair with his pregnant fiancée Blac Chyna and her son King Cairo, 4, on Saturday, October 8. And surprisingly, the usually reclusive reality-star shared some of the fun on Snapchat.

The Arthur George sock designer snapped a video of his soon-to-be stepson smiling on a pony ride.

Rob Kardashian / Snapchat / .

Blac Chyna also featured Rob in a slew of her snaps from their weekend outing, including a rare full body shot of the "Keeping Up with the Kardashians" star wearing all black and standing in front of a bouncy house.

Blacchynla / Snapchat / .

Though he didn't look that amused when his baby mama got a video of him with a floral crown filter.

"I hate that filter," he quipped.

But, Rob got in on the action as the trio went around checking out animals at the petting zoo later on.

It hasn't been such smooth sailing for Rob and Chyna as of late, so it's nice to see them spending some quality time together and feeling free to share it all on social media.

Rob has a past of totally going into hiding when things get rough. He deleted all of his Instagram photos back in March and July, allegedly after fighting with his love.

The couple, who got engaged in April after only a few months of dating, have also showcased a bunch of pretty intense arguments on their new E! reality show "Rob and Chyna."

Just recently, Rob went a bit off the rails on Twitter calling out Kylie Jenner after his sisters tried to throw him a shower without inviting Blac Chyna, expecting a baby girl.

But according to this weekends Snapchats, it looks like all is well for Rob and Chyna ... for now.