Transcript for What Would You Do? Lesbian Wedding Cake
So, let's get right to it. The scene's set. The actors in place. And the hidden cameras are rolling. Love and marriage. May go together like a horse and carriage -- but when the loving couple is bride and bride or groom and groom, that carriage sometimes can come to a screeching halt. Arguments for and against same sex marriage made their way to the supreme court, where just two weeks ago, justices shattered the motion that marriage is solely between a man and a woman. The federal government can no longer discriminate against the marriages of gay and lesbian americans. Reporter: The supreme court changed that law, but it may not have changed opinions. They attacked something they have no jurisdiction over whatsoever. The foundational unit of our society, which is marriage. Reporter: So we set up shot at a little cake bakery in park ridge, new jersey, to find out how people feel when confronted with gay marriage. Today, we're playing a lesbian couple. And we're getting married. I'm playing the homophobic baker and I'm not going to sell a lesbian wedding cake. Reporter: Will people tolerate this type of intolerance? We wanted to set an appointment for cake testing. What kind of cake? A wedding cake. A wedding cake? And we like this cake but we wanted to know if it would go with this topper. You're having a lesbian wedding? Yes. I can't serve you. We can't do a lesbian wedding. I won't do a lesbian wedding came. Put it that way. Reporter: It quickly catches the attention of these women who spring into action. We would like to cancel our appointment. If you're not going to serve them, we're going to go, too. Ladies, I'm sorry. What am I supposed to do? I'm supposed to compromise my morals for a price? No, we're not saying that you should. But we're saying that we are going to take our business elsewhere and there's no reason why you cannot serve them. So -- that's totally your -- but she's marrying a man. They're not, they're marrying each other. And that's great for them. If they love each other that's great. And they'll go somewhere where they will get served. Unfortunately, you will not do that so we are going to leave actually as well. Reporter: As the women walk out, they take our couple with them. Come on, ladies. I'm sorry. I'm so upset, I'm shaking because I'm so pissed off that they wouldn't serve you. Reporter: Time to let them in on our little secret. Let's go get them. Outside? Yeah. Reporter: What's going on here? I'm john quinones with the tv show "what would you do?" Oh, my god. I've seen this before. Can we go back in and eat some cake? Reporter: This happens in life sometimes, in real life. What do you say to that? There's no reason why people who are gay cannot be in love and get married. And everybody deserves the same service. Why should I get different service because I'm going to marry a man? Reporter: Like megan and lori, most of the people we encountered throughout the day were quick to defend our couple. It's wrong. I won't come here anymore. Reporter: Some folks call peter's behavior not only bad, but bad business. You don't impose your personal opinion on a customer. I'm sorry that he treated you that way. Nobody should ever feel belittled for who they love. And he doesn't respect apresent all of us. Reporter: Others used religion to defend the women. You believe in god? Yes. If god didn't want them this way, he wouldn't have made them this way, correct? When you get to god, he doesn't judge sexuality. Reporter: Throughout the day, emotions run high. I'm so sorry. I feel like crying for you. I'm sorry. I'm sorry? I'm apalled bid your behavior, actually. They're human becomes, like all of us. Reporter: Along comes this couple. He says he doesn't believe in same sex marriage, but he feels the lesbian couple should not be discriminated against. They're entitled to love who they want to, the way they want somebody else. But they're less boone yeahs, period. But that's just them. Back in the day, just because I'm black, they wouldn't allow me to walk in and sit at one of these tables and that was somebody's personal belief, because I'm black, that they didn't have to serve me, so -- that's just how I feel. Reporter: How are you doing? Are you okay? Your heart's beating. You were taken by this. Yeah, yeah. Reporter: You were in tears. Yeah. Reporter: Why? It's just not fair. Making a judgment call just because that person does not believe the way you do is -- is just as the same situation as, you know, not allowing me to sit down at a restaurant because of the color of my skin. Reporter: You were pulling him out the door. I didn't want him to get in trouble or anything. I'm like, "let's just go, let's mind our business and just go." But they should be able to buy whatever they want to buy. Reporter: But not everyone agrees with that. These customers seem willing to discriminate, but they refuse to be identified when the cameras come out. I'm with you. The platform is unbelievable. Just go on with your own life, don't show anybody your topper, and put it on the damn cake yourself. Reporter: And she's not the only one that feels that way. I just don't believe in it. That's the one thing, every time I hear that they legalize it in a state, I'm like shaking my head. Reporter: Erin kristoff is shaking her head too, but for a different reason. We're getting married. You're having a lesbian wedding? Yeah, isn't it exciting? You two are getting married? Yes. In riverdale. Ladies I'm just going to be clear with you. I won't do a cake for a lesbian wedding so you can take this back. Reporter: We tell our actors to push it a little further. It's disgusting. Literally, I cannot abide by the lifestyle that you've chosen. It's really appalling to me, so please take that and go. We'll go somewhere else. My aunt just got married in brooklyn and they had a beautiful cake. Really? Yeah. I'm kind of really freaked out and I kind of feel like I'm on tv right now. Like, this couldn't really have just happened. You're still here? You're disturbing my customers, please leave, okay? Just go. I asked you nicely. This has to be fake. I cannot believe this. I cannot believe this. Thanks a lot. I'm sorry, ma'am, I just can't sell out my beliefs. I don't agree with what you just did, it was horrible. Reporter: It's time to give erin her cake. Here's your cake, ma'am. I knew it! Wow. Holy -- am I allowed to curse? Reporter: Yes. Holy -- that was insane! Reporter: Turns out she was right with her suspicions about us and the clerk. First of all, I was like, i don't understand how this guy is turning away lesbians. I know. Reporter: That's right. Our discriminating clerk, peter, isually gay. It feels difficult for you to say these things? Yeah, it is. It's very emotional. It's hard. Reporter: Throughout the emotional day of filming, the resounding message was that people deserve to be served regardless of personal beliefs. A sentiment that really takes the cake.
This transcript has been automatically generated and may not be 100% accurate.