When we sit down to watch a movie, we get pretty invested in the main characters, especially if there's a major love story. It's tough not to ship the actors involved and think that they could totally live an off-screen happily ever after. Of course, we feel this way because there are many star-studded couples who meet cute on a film set, like Rachel McAdams and Ryan Gosling who dated around the time that they were in The Notebook. Even though we've seen time and time again that it doesn't always work out, we still think that these couples can make it.

Although there are countless movies that feature very romantic love scenes, there are just as many stars who aren't that comfortable with them. They each have their various reasons.

Read on to find out about Dwayne Johnson and 19 other actors who refuse to do love scenes.

20 Dwayne Johnson: People Say The Rock Hasn't Had Real Love Scenes

We haven't seen Dwayne Johnson (aka The Rock) in any movie love scenes, and that's because some people say that he's not the type to take on those types of roles.

One fan made a good point when he wrote for Small Screen, "Johnson often plays fathers, husbands, or characters who are more concerned with saving the world rather than looking for love."

19 Sarah Jessica Parker: The Actress Puts A 'No Nudity Clause' In Contracts

Sarah Jessica Parker is known for always wearing fabulous clothing, even better shoes, and bringing Carrie Bradshaw from Sex and the City to life.

But she's not cool with love scenes where she would be taking it all off, and Business Insider explains that SJP has a contract clause saying "no nudity."

18 Lindsay Lohan: She Actually Got A Body Double For 'Scary Movie 5'

Remember the Scary Movie franchise? They were super popular back in the day, and each film featured some celeb cameos. We might not remember but Lindsay Lohan was in the fifth film.

Nicki Swift says that Lindsay was supposed to kiss Charlie Sheen but she wouldn't do it. So instead, she got a body double.

17 Nina Dobrev And Ian Somerhalder: They Won't Kiss In The Rain Again

The List says that Ian Somerhalder and Nina Dobrev, who started dating after meeting because of The Vampire Diaries, decided that they couldn't kiss in the rain after it was such a bad experience. The couple broke up in 2013 (but they were so cute together, as we can see from this sweet photo).

16 Denzel Washington: He Didn't Want To Kiss Julia Roberts

When Denzel Washington and Julia Roberts were in The Pelican Brief, which was released in 2013, he didn't want to kiss her.

This is definitely surprising to hear. Why did he make that decision? As Nicki Swift explained, "because he did not want to play into Hollywood's biased beauty ideals and alienate fans."

15 Kirk Cameron: He Can't Do Love Scenes Because Of His Faith

Kirk Cameron, who is the brother of Candace Cameron Bure and became famous for being n the TV show Growing Pains, is another actor who says that love scenes aren't for him. And in this case, it's because of his faith.

Fox News quoted him as saying, "I have a commitment not to kiss any other woman,"

14 Anna Kendrick: She's Not Big On Love Scenes, Either

Business Insider says that Anna Kendrick doesn't want to do love scenes where she doesn't have any clothes on, either.

It's really cool to hear when people stand their ground and make sure that they're doing what feels right to them. The actress is great whether she's in a dramatic or funny role.

13 Candace Cameron Bure: The Hallmark Star Gets Concerned About Love Scenes

What about Candace Cameron Bure? How does she feel about love scenes?

As it turns out, she's not that into them. Nicki Swift quoted her as saying, "Sometimes I'm doing my Hallmark movies and we've got a new guy in each movie. I'm getting more uncomfortable with it the older I'm getting. I'm like, 'I don't want to keep doing this!'"

12 Alyson Hannigan: She Was Worried About Kissing Jason Segel On 'HIMYM'

The Whisp.mommyish says that because Jason Segel was a smoker, Alyson Hannigan wasn't really down with the idea of kissing him when they were on the popular sitcom How I Met Your Mother together.

It's so interesting to hear that she was worried about that, especially for fans of the hilarious show.

11 Julia Roberts: She Won't Take Her Clothes Off In A Movie

Business Insider says that Julia Roberts won't take her clothes off for a film's love scene, either.

The publication quoted her as saying, “you know it’s not really what I do, so if you are going ask me to do it, you have to expect it to be toned down. You know, as a [mother] of three, I feel like that.”

10 Lena Headey: She Had A 'Game Of Thrones' Double

Game Of Thrones was a thrilling TV series with lots of romance, excitement, battle scenes, and also some scenes where the characters would bare it all.

Women's Weekly says that Lena Headey wasn't comfortable showing it all off and she had a body double for those moments, which is definitely interesting to hear about.

9 Kristen Bell: She Stands Her Ground

Kristen Bell is lovely and adorable in any role, from voicing Gossip Girl to starring on the unique sitcom The Good Place.

She is also another actress who has stood up for herself and said that she's not going to do love scenes where she wouldn't have clothes on. Women's Weekly says that she said "Dream on!" about the topic.

8 Blake Lively: She Won't Do Nude Love Scenes

Blake Lively became famous for playing rich teenager Serena on Gossip Girl and she's been in too many films to count since those days.

According to Business Insiderthe actress isn't going to do any nude scenes. She said, "I just don’t think that will ever be right for me.”

7 Tisha Campbell: The '90s Actress Stopped Kissing Her Co-Star

The Fact Research says that the actress Tisha Campbell, who became known in the '90s for starring on the sitcom Martin, stopped kissing her co-star, Martin Lawrence.

The publication says it was because he wanted to go out with her and she kept saying no, but he was being really aggressive about it.

6 Megan Fox: She Said No To A Part Because Of The Love Scenes

According to Business InsiderMegan Fox is another actress who isn't super comfortable with a love scene where she would be taking her clothes off.

She said, “Those are things that are degrading to the woman who’s playing the character" and explained that she said no to a part for a series on HBO because she didn't want to do that.

5 Janet Jackson: She Had Some Rules For A 1993 Movie

We know Janet Jackson as a famous singer, but in 1993, she starred in the movie Poetic Justice. As The List explains, she had her co-star, Tupac Shakur, take a blood test because she didn't want to kiss him if he didn't.

That's a bit surprising and definitely not something that you hear about every day.

4 Neal McDonough: The 'Desperate Housewives' Actor Won't Do Kissing Scenes

If we watched the juicy TV drama Desperate Housewives about a group of friends and the crazy things that happened on their street, Wisteria Lane, we might recognize Neal McDonough. The actor appeared on the series as David Williams, who was married to Edie.

Page Six quoted him as saying that he won't do kissing scenes because of Ruve Robertson, who he used to be married to. His faith also has something to do with it.

3 Will Smith: He Said No To A Movie Kiss

We might not think of Will Smith as an actor who would refuse to do love scenes but there was a time in his past that he put his foot down.

According to The Whisp.mommyish, Will Smith said no to a movie kiss because it was same-sex. Later, he said he "wasn't emotionally stable enough to artistically commit to that aspect of the film" and was "immature."

2 Rachel Bilson: The 'O.C.' Star Won't Do Love Scenes

Everyone remembers Rachel Bilson as popular teen Summer Roberts on The O.C. and she's been on fun TV shows like Hart Of Dixie since.

Women's Weekly says that Rachel won't do love scenes if she would have to take her clothing off. She said, "I’m pretty strong willed and believe it can be avoided.”

1 Mandy Moore: She Says She's 'A Modest Girl'

Mandy Moore is a talented singer who has also appeared in many movies and recently became even more famous for starring on the tearjerker TV show This Is Us.

Business Insider says that Mandy isn't down with love scenes where she would remove her clothing. She has said "I'm a modest girl."

Sources: Businessinsider.sg, Womensweekly.comThewhisp.mommyish.com, Pagesix.com, Nickiswift.com, Small-screen-co-uk, Foxnews.com