Fans were living for Britney Spears and Justin Timberlake‘s Instagram exchange after she showed off her dance moves to his song “Filthy” — and it turns out his wife Jessica Biel, 38, had no issue with it! ”Jessica is totally cool with Justin and Britney’s back and forth on Instagram,” a source close to the actress spilled to HollywoodLife EXCLUSIVELY. “It was really fun to see people happy about their reconnection,” the insider added.