India, April 10 -- "Ultimate partners in crime, confidants, and lifelong friends" - that's how actor Karan Tacker defines his bond with older sister Sasha Tacker.

The 38-year-old recalls how Sasha used to forge their parents' signatures in his school handbook: "Whenever I got a not-so-pleasant remark from my teacher in my handbook, Sasha used to forge either mom or dad's signature for me. We used to fight non-stop, but she was always by my side whenever something went wrong."

Sasha says while Karan is extremely possessive as a brother, he shares a beautiful bond with her husband. "As children, we used to fight like cats and dogs, but as we grew up, I introduced Karan to parties, night clubs, Backstreet Boys, pop culture and more. Spendi...