Jewish?

Similar to the term, "Bible-believing Christian."

Yes they're real. Lyndsy is Jewish. When she married Noah Bean they did "readings from Jewish and Buddhists traditions," and were "married underneath a chuppah that was built by Bean from the trees on his late father’s property in Massachusetts," per People Magazine. A "Chuppah" is a canopy the couple gets married under in a traditional Jewish Wedding. No other culture uses a Chuppah. If you dig deeper her profile states she's Jewish, born in 1987 in California. There are entire articles detailing her family's emigration to the US.

The Hebrew tattoo is her own, and common sense tells you if her sister's Jewish, so is she. She's 75% Portuguese and 25% German, which is very common for Jewish American & Latin American Emigrants. Her grandparents all Emigrated to America just before WWII. I'm the same age as her and Jewish, and my grandparents came over during the same time.
And for anyone wondering, tattoos aren't "against the Torah." The Torah isn't like the Bible telling you what you can and cannot do beyond the most fundamental. Unless you're Orthodox there's no issue getting tattoos even tho it goes against "tradition." It's not a sin; we have much bigger issues at hand than tattoos.

Regarding her nationality: Brazil, for example, has the largest population of "Ladino" Jews, who emigrated mainly from Portugal, Spain, and Germany (yes Germany). Lots of Nazis also escaped to Brazil, Panama, and Argentina where there are many German Speakers to this day. Brazil's National Language is Portuguese and most Jews speak "Ladino" which is a Latin American/Romance form of Yiddish, spoken in Central & South America, Spain, Portugal, and Israel.