As the costars promoted crime-spoof sequel The Naked Gun, they have been "enjoying each other's company," continued the source. Neeson and Anderson have exchanged sweet kisses on the cheek on red carpets, and recently puckered up to apply Anderson's Sonsie lip balm while on Watch What Happens Live with Andy Cohen.

During a new promo for their film The Naked Gun, Liam Neeson planted a kiss onto his co-star Pamela Anderson, leaving fans with more to believe the two are an item

Have you ever had a threesome with a snowman? Of course you haven’t. But two people who have are Lt. Frank Drebin Jr. (Liam Neeson) and Beth Davenport (Pamela Anderson), the stars of the riotously funny new film The Naked Gun.