Flirting with a sibling doesn't even break the Top 100 grossest things happening on Tinder right now.

If you love your sister so much, why don't you marry her? Haha- OH. WOW.
(photo via Thinkstock)

Josephine Egberts and Erik de Vries were separated in 1999 when their parents split up. One went to Belgium with Dad, one went with Mom to The Netherlands. They had given up searching for each other years ago.

Then came Tinder. Erik, at the age of 24, moved to The Netherlands for school, and in his off time started swiping right on hot girls in his area. He started flirting with a particular match he thought was cute, and the more they talked about their past with each other, the more it became apparent: they were brother and sister.

"The first time I swiped her profile I had absolutely no idea," de Vries told Mic. “To be honest, it hasn't been on my mind in the past few years after Maarten, my brother, and I finished a failed search for Josephine a few years ago."

They finally met up a week later and confirmed it.

Josephine reacted emotionally: "When I saw him, it was suddenly very clear…It was so special to see my own blood brother again after 16 years."

Thank God they talked a little before jumping to the usual end to a Tinder date. This story would be way less uplifting.