If you thought only kids bullied each other at school, think again. 

A same-sex couple in Mexico is claiming three schools discriminated against them because of their sexual orientation, according to Animal Politico, a Spanish news website.

Martha, whose using a pseudonym to hide the identity of her children, first attempted to enroll her kids in Olinca in San Angel, a Mexico City school, in 2015.

She toured the school and thought it would be a good fit. However, the good vibes soured when Martha asked the school's director if there were other students who have same-sex parents.

"The director's response was, 'No, we don't have a problem with that, so long as they don’t make a scene in front of the children,'" Martha told Animal Politico.

Reporter Ana Francisca Vega reached out to the school about Martha's claim.

In a response tweet, Olinca claimed it respects "all types of families." 

Martha said she encountered the same homophobic response at the Senda school located in Mexico City.

The school initially admitted her children, but then expelled them. Senada claimed other parents wouldn't be welcoming of their family.

"They began by telling me that they wanted the school to be more open, but unfortunately, the parents of the other children were very 'Catholic' and they couldn't accept my children," told Animal Politico. "Plus the school didn't want the other children to bully my children for having two moms. They said they preferred to 'protect' them and shield them from that 'suffering.'"

This week, Martha filed a discrimination claim, after her kids were rejected for a third time.

Martha filed a claim with Mexico's Council for the Prevention and Elimination of Discrimination after looking into MiKínder, a 'secular' school that has ties to a Catholic organization.

The council is looking into Martha's case, but she might be facing an uphill battle.

Mexico legalized same-sex marriage in 2009, six years before the United States, but the country is still very homophobic. 

In 2014, a report from the Center for International Human Rights found Mexico still discriminates heavily against the LGBTQ community. 

"Mexico's National Supreme Court of Justice merits recognition for rulings it has issued in certain cases challenging discrimination on the basis of sexual orientation," the report stated. "But despite these commendable measures, homophobia and transphobia remain prevalent in Mexico, and discrimination and hate crimes on the basis of sexual orientation and gender identity remain all too common."

For instance, thousands of Mexicans marched to protest same-sex marriage in September. Furthermore, the report found that Mexico does not investigate or prosecute the killings of LGBTQ people. The country also doesn't protect LGBTQ children who are being bullied and don't offer social security benefits to same-sex couples.

Martha said she's not interested in enrolling her children in schools that have already discriminated against her children. However, she does want to prevent similar injustices in the future.

Martha, who's kids are still not enrolled in any school, also said she wants the secretary of public education to forbid schools from discriminating against families due to sexual orientation.

"We want this claim to be investigated so other families and kids do not have to be discriminated against as we were," she said.