A woman has described a terrifying attack on her and her girlfriend by a group of men while they were on their way home on a night bus in north London.

Melania Geymonat, a 28-year-old air hostess, and her girlfriend Chris were left bloodied and in shock after the attack on May 30 that she said started when the men asked the pair to kiss for their entertainment.

Ms Geymonat shared a photo in a Facebook post on June 5 of her and Chris on the bus, which they had been taking to Camden, with their faces and clothes covered in blood.

She labelled the attack as “chauvinist, misogynistic and homophobic violence”.

“I had a date with Chris,” Ms Geymonat wrote in the post. “We got on the Night Bus, climbed upstairs and took the front seats. We must have kissed or something because these guys came after us.”

She said she does not remember if the group of four men were already on the bus or had got on after them but they began “behaving like hooligans and demanding that they kissed so they could enjoy watching.”

She added that the men called them “lesbians” and “described sexual positions.”

“It was only them and us there. In an attempt to calm things down, I started making jokes. I thought this might make them go away. Chris even pretended she was sick, but they kept on harassing us, throwing us coins and becoming more enthusiastic about it.

“The next thing I know is that Chris is in the middle of the bus fighting with them. On an impulse, I went over there only to find her face bleeding and three of them beating her up. The next thing I know is I'm being punched.

“I got dizzy at the sight of my blood and fell back. I don’t remember whether or not I lost consciousness.”

Ms Geymonat said their things were stolen and when she came to, the police had arrived and she was “bleeding all over”.

She added that she has not been able to return to work since the attack and was still unsure whether or not her nose had been broken.

“I’m tired of being taken as a sexual object, of finding out that these situations are usual, of gay friends who were beaten up just because. We have to endure verbal harassment and chauvinist, misogynistic and homophobic violence because when you stand up for yourself s*** like this happens.”

London mayor Sadiq Khan wrote on Twitter that attacks against the LGBT+ community will not be tolerated.

"This was a disgusting, misogynistic attack. Hate crimes against the LGBT+ community will not be tolerated in London," he said.

In a statement, Siwan Hayward, Director of Compliance, Policing and On-Street Services at TfL, said: "This sickening attack is utterly unacceptable. Homophobic behaviour and abuse is a hate crime and won’t be tolerated on our network. All of our customers have the right to travel without fear of verbal or physical assault and we are working with the police to stamp out this behaviour on our transport network. We will do all we can to support the police investigation of this incident."

The Metropolitan Police confirmed an investigation was under way.

In a statement the force said: "Police are appealing for witnesses and information after two women were assaulted and robbed in a homophobic attack on a bus in Camden.

"The incident happened at approximately 02:30hrs on Thursday, 30 May after the two women, both aged in their 20s, boarded a N31 bus in West Hampstead.

"As they sat on the top deck they were approached by a group of four males who began to make lewd and homophobic comments to them. The women were then attacked and punched several times before the males ran off the bus. A phone and bag were stolen during the assault.

"Both women were taken to hospital for treatment to facial injuries."

Anyone who witnessed the incident or who has information that could assist the investigation is asked to contact police on 101 or tweet @MetCC and quote CAD737/30May. Alternatively, call Crimestoppers anonymously on 0800 555 111.