The 30-year-old actress was spotted Wednesday holding onto the 39-year-old actor as she walked back to her trailer on set and was also seen playing with Sadoski and her dog Finn.
"Amanda and Thomas are definitely dating right now.
Despite the unusually warm 55-degree temperature, the actress wore a wool coat as she and Thomas Sadoski left their apartment around 10 a.m.
The outing marked the first time they've been seen together since Seyfried's rep told E! With her dog Finn in tow, the 30-year-old mom-to-be grabbed coffee, ignoring the paparazzi's questions regarding her due date and what she and Sadosky plan to name their firstborn child.
PARIS, FRANCE - JUNE 24: Amanda Seyfried and Thomas Sadoski attend the Givenchy Menswear Spring/Summer 2017 show as part of Paris Fashion Week on June 24, 2016 in Paris, France.
, the gorgeous gal was spotted grabbing onto the back of the actor's pants as they walked to their trailers! But now that they've reunited for this movie, it's clear that the Hollywood hotties are ready to be more than friends!
The sighting follows Seyfried's split from boyfriend Justin Long.
She and the 37-year-old actor were together two years before going their separate ways in September, reportedly because they "had different schedules and different lives." "They both tried very hard to make it work because they each wanted to eventually have a family but ultimately they weren't compatible and decided to split up," a source told People at the time.
The pot may have been brewing for a while on this one, as Seyfried and Sadoski cozily walked the red carpet together at last year's Tony Awards in June, but both were still in relationships at the time.
She's feeling really good."In an interview earlier this week with Refinery 29, the mama-to-be revealed that her sense of smell has changed since becoming pregnant."I swear to god I can smell the TV. Normally it's fine—I know it'll pass or I can leave the room—but I cannot tolerate it anymore.
I have a hard time with that.", scheduled for released on March 10, 2017. I definitely want to a couple kids." Tuesday that it can feel hollow.
She began her career as a model when she was 11, then her acting career at 15 with recurring parts on the soap operas As the World Turns and All My Children.
In 2004, Seyfried made her movie debut in the teen comedy Mean Girls.