Ashton Kutcher and Senator John McCain shared a bromance moment when the actor appeared at a Senate hearing at Capitol Hill today to testify against human trafficking and modern slavery.

The Republican Senator thanked the That 70s Show actor for attending the Senate Foreign Relations Committee hearing on Wednesday before poking fun at the actor's Hollywood looks.

'I also want to thank Elisa and Ashton. Ashton you were better looking in the movies,' McCain jabbed.

A budding bromance: The actor blew a kiss at the Senator after he playfully remarked the actor was 'better looking' in the movies

The 39-year-old had the perfect response to the senator's remark and blew him a kiss, prompting laughter from those in attendance.

Kutcher gave an impassioned speech during the hearing where he spoke about his work fighting against human trafficking and saving children from sexual abuse.

The former Punk'd host is a co-founder of Thorn: Digital Defenders of Children, an organization he helped establish with ex-wife Demi Moore, which fights against the sexual exploitation of children.

Kutcher flew out to Washington a week before Shine a Light on Slavery Day, a day created by the End It organization to raise awareness on the issue.

US Senator and Chairman of the committee Bob Corker said the actor hopped aboard a red-eye flight to the hearing after a Valentine's Day dinner with his wife.

The kiss prompted laughter from the audience and McCain himself, before he proceeded to testify against human trafficking

During a Foreign Relations Committee Senate hearing on Wednesday Senator John McCain poked fun at Ashton Kutcher's looks

The famous romcom actor became emotional during his powerful speech, stating his goal on Wednesday was to 'defend the right to pursue happiness'.

'But the right to pursue happiness, for so many, is stripped away. It’s raped. It’s abused. It’s taken by force, fraud, or coercion. It is sold for the momentary happiness of another,' he said.

Kutcher described his experiences as chairman of the organization saying he has met victims from Russia, India, and parts of the US and has been on FBI raids where he saw things 'no person should ever see.'

Ashton Kutcher, founder of Digital Defenders of Children walks with Senate Foreign Relations Committee Chairman Senator Bob Corker

After describing harrowing details of his work, Kutcher said: 'That's my day job, and I'm sticking to it'

He was seen holding back tears as he described a time that he watched a video of a child the same age as his own, being raped by an American man who was sex tourist in Cambodia.

Kutcher also added that his organization was the 'last line of defense' in helping the Department of Homeland Security trying to locate a seven-year-old girl that was being sexually abused in content that was circulating around the dark web.

'This is the part where Internet trolls start telling me to stick to my day job, he said.

After detailing his harrowing experiences on the job, Kutcher added: 'That’s my day job, and I’m sticking to it.'

The actor is married to actress and former co-star, Mila Kunis. The couple has two children, a two-month-old son and two-year-old girl.