AceShowbiz -

Jennifer Lawrence reveals her most vulnerable moment yet and it happened only weeks ago. The 25-year-old actress, who bravely wrote an essay about gender pay gap in Hollywood and skinned a real squirrel in "Winter's Bone", dreaded her sex scene with married actor Chris Pratt.

While talking about her upcoming sci-fi film "Passengers (2016)" in The Hollywood Reporter's annual actress roundtable, Lawrence said she filmed her first ever sex scene a couple of weeks ago. "I had my first real sex scene a couple weeks ago, and it was really bizarre. It was really weird," she said, adding, "Everything was done right; nobody did anything wrong. It's just a bizarre experience."

One thing to overcome the nerve? Alcohol. "I got really, really drunk. But then that led to more anxiety when I got home because I was like, 'What have I done? I don't know.' And he was married. And it was going to be my first time kissing a married man, and guilt is the worst feeling in your stomach," Lawrence explained.

She continued, "And I knew it was my job, but I couldn't tell my stomach that. So I called my mom, and I was like, 'Will you just tell me it's OK?' It was just very vulnerable. And you don't know what's too much. You want to do it real, you want everything to be real, but then... That was the most vulnerable I've ever been."

"Passengers", directed by Morten Tyldum, follows Lawrence and Pratt's characters who travel on an interstellar spacecraft and make the journey to a new planet. The film will be released December 21, 2016 stateside.