The former Sex and the City star and new mom showed no reservations with Aaron Sorkin at a PDA-packed premiere of his latest show, The Newsroom, on Wednesday in Los Angeles.
"The couple kissed for cameras on the red carpet and stayed very close at the after party," an onlooker tells PEOPLE. "They held hands and hugged all night."
A giddy Davis was "giggling while Aaron told stories about his prom dates as a youth," the source says, adding, "the couple posed for pictures with their friends and left together about half an hour into the after party."
Jeff Kravitz / FilmMagic
– Raha Lewis