Geymonat said she and Chris were sitting in the top deck of the bus when they somehow drew the attention of at least four men. The men moved themselves near the women and began harassing them, she said.
“They started behaving like hooligans, demanding that we kissed so they could enjoy watching, calling us ‘lesbians’ and describing sexual positions,” Geymonat wrote.
Geymonat said she started making jokes in an attempt to defuse the situation, and Chris pretended to be sick. But the men continued harassing them, Geymonat said, and began throwing coins at them.
"The next thing I know is that Chris is in the middle of the bus fighting with them," Geymonat said. "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."
The men ran off the bus after the assault, police said in a statement. They also stole a phone and a purse from the couple.
The women were treated at a hospital for facial injuries.
London Mayor Sadiq Khan tweeted about the attack, calling it "disgusting" and "misogynistic."
“Hate crimes against the LGBT+ community will not be tolerated in London,” he said.