Jason Momoa & Kate Beckinsale Spark Dating Rumors

Jason Momoa, 42, and Kate Beckinsale, 48, have the rumor mill churning!

On Sunday, Kate was seen wearing Jason’s jacket to stay warm at the Vanity Fair Oscars Party.

A source told E! News, “They were standing at a bar chatting. They both had smiles on their faces and were very much into their conversation."

According the insider, they “looked really happy” in each other’s company. The two didn’t spend the whole time with each other, they also mingled separately with others like Jessica Alba, Sienna Miller, Rita Ora and Zoë Kravitz.

Momoa and Beckinsale were also seen hitting up JAY-Z’s party at the Chateau Marmont!

Earlier in the day, “Extra’s” Billy Bush and Rachel Lindsay spoke with Jason, who said he was looking forward to seeing friends at the Oscars, where he was presenting. He said, “I am excited for ‘Dune’ to win some awards, excited to see my friends and my daughter [Zoë Kravitz].”

In January, Jason announced his shocking separation from Lisa Bonet.

In a joint statement, they said, “We have all felt the squeeze and changes of these transformational times… A revolution is unfolding ~and our family is of no exception… feeling and growing from the seismic shifts occurring. And so~ We share our Family news~ That we are parting ways in marriage. We share this not because we think it’s newsworthy ~ But so that~ as we go about our lives we may do so with dignity and honesty.”

The pair ended their statement by bringing attention to their children Lola, 14, and Nakoa-Wolf, 13, saying, “The love between us carries on, evolving in ways it wishes to be known and lived. We free each other ~to be who we are learning to become … Our devotion unwavering to this sacred life & our Children Teaching our Children What’s possible ~ Living the Prayer May Love Prevail J & L.”

Jason and Lisa met through friends in 2005.

Kate is no stranger to high-profile relationships — she has 22-year-old  daughter Lily with her ex-boyfriend Michael Sheen, and she was married  to filmmaker Len Wiseman for 11 years. Not long ago, she was linked to  “Saturday Night Live” star Pete Davidson, and more recently singer Goody  Grace.

Last year, Kate made a surprise dating confession to "Extra's" Jenn Lahmers. She revealed, "Do you know I've never really been on a date? I  literally meet someone, get to know them at work, and then either marry  them or get pregnant by them.”

When it comes to meeting someone, she said she has zero interest in blind dates. “I just can't think of anything I'd hate more than sitting  in front of somebody I don't know, that chances are I won't like, and  have to sit and watch them eat food,” she said.