Justin Timberlake has gone all-in this week with back-on girlfriend Jessica Biel. He not only took her to dinner with his parents, but he also laid on the touchy-feeliness with her on Thursday night following the Los Angeles premiere of his new movie, "In Time."
"Jess didn't show up until the afterparty," a spy tells Us Weekly. "They still look really in love, though ... such a cute couple."
During the shindig, the pair "became more and more affectionate, sneaking kisses, whispering to each other, and sharing quick back rubs and caresses," another onlooker tells People. "At one point, she pretended to punch him a couple times, and he gamely bounced up and down like a jack-in-the-box."