The superstar couple cozied up to Italian actor Michele Morrone in a sweet snap he shared ... showed all three takes of a dance scene between Lively, 37, and Baldoni, 40 - revealing the pair ...

On Sunday, January 26, the actress' A Simple Favor 2 costar Michele Morrone ... she's very spicy," Morrone joked. "She's an incredible artist. Anna knows how to dance, to sing, to act.

Blake Lively, Ryan Reynolds and Michele Morrone were seen reuniting in a photo posted on Morrone's Instagram Stories on Sunday, Jan. 26.