This is not your typical in-law relationship.

When Katherine Karamasos went on a three-week trip to Australia, she asked her biotech project manager mother, Eva Harris, to "keep an eye on" her partner, Gabriel Cruz, a sushi chef and rapper.

Little did Karamasos imagine the adventures the pair would go on — and the TikTok fame they would achieve as a result.

"My daughter is out of town, so I'm taking my son-in-law to do 'old lady white people s---,'" Harris said in one of her viral videos in which the dynamic duo visit a farm petting zoo and do goat yoga. It has over 7 million views.

So Harris and Cruz decided to keep the adventures rolling.

“I had no idea it was going to go viral, but that’s exactly what happened,” Harris tells TODAY.com. “It blew me away, how people really just w

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