Justin Timberlake and Jessica Biel are learning that after four years together, it's hard to say goodbye to someone for good. In fact, according to an unnamed source, the pair are "quietly seeing each other again." That's right -- Justin and Jessica are back together!

"They have been talking the whole time and decided to give it another shot," the source adds. "Jessica really wanted to get back together with him and Justin realized single life is not what it's cracked up to be."

Of course single life isn't all kittens and rainbows when you were once dating Jessica Biel! Timberlake, 30, and Biel, 29, just broke things off in March, so for now, "they're just spending time together and taking things slowly," another source chimes in. On July 3, the cute couple were spotted dining on pork tacos in Toronto. Did we mention they were sharing them? It's just like a scene out of 'Lady and the Tramp!'

J-Tim and another former flame of four years, Cameron Diaz, have been the talk of the media lately. The former couple's comedy flick 'Bad Teacher' dropped in theaters on June 24.

Naturally, we're rooting for Justin and Jessica, because they're so cute together! That is, of course, if Britney isn't available.

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