The Flash Season 2: Supergirl and Barry Allen are BFFs in this behind-the-scenes featurette

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Supergirl's crossover with The Flash was easily one of the best yet, and a new featurette shows that Barry Allen's chemistry with Kara Danvers extends off camera! Check out the new behind-the-scenes featurette below!

Okay, so they may not be a romantic item but it's official - Grant Gustin and Melissa Benoist are just the cutest together! The 'Worlds Finest' united for a crossover between The Flash and Supergirl recently, and the pair got on like a house on fire. In fact it went so well, that Grant Gustin wants to set up an Arrow, Supergirl and The Flash crossover event! While Oliver Queen is a much darker character than Barry or Kara, and the reason they worked so well together was their lightheartedness, expanding that universe to create a mini Justice League could never be a bad thing! That'll be a long time coming yet, but for now, you'll have to settle for this behind-the-scenes featurette where Gustin and Benoist are being their adorably dorky selves. Check out the video courtesy of DC Entertainment below!

Both Benoist and Gustin seem to have really enjoyed filming the crossover, which bodes well for one in the future! Winn is an extremely similar character to Cisco, and we'd love to see the two of them interact in the next crossover! And Felicity Smoak shares several character traits with Kara Danvers too, so that would be one badass team for sure! There has been talk of a huge crossover in the past between The Flash, Arrow and Legends of Tomorrow, so throw Supergirl into the mix and you have the ultimate crossover episode! It does sound a little bit crowded though, so perhaps it would be best to focus on just a few core superhero characters and leave the sidekicks to the sidelines. For regular updates on The Flash Season 2, click the green subscribe button below! Would you like to see another crossover with Supergirl?

Source: YouTube: @DC Entertainment