It's a Valentine's Day they'll never forget.
Guan Wang, 25 and Yuhui Wang, 24, from Hurstville were among about 100 NSW couples to say "I do" on Tuesday, making Valentine's Day their future wedding anniversary.
It was a simple but heartfelt ceremony at the Chippendale registry office in inner Sydney, where 19 couples were getting married on Tuesday.
The bride wore a short lace dress and tan pumps with her hair tied back in a loose ponytail, while a few of their friends took early lunchbreaks from work to watch the couple become husband and wife.
"She looks absolutely stunning," a beaming Mr Wang said of his bride. "We're very excited and very happy.
The couple, who share the same surname, met four years ago in a Sydney English language class.
"We fell in love and started dating and here we are, four years later and we're finally getting married," Mr Wang told AAP.
The decision to marry on Valentine's Day came around quite accidentally, he added.
"My birthday is January and her birthday is April. I talked to her about getting married on my birthday and she said 'no, it should be on my birthday'.
"So we decided to compromise and choose a day in between."
They aren't alone. The NSW Registry of Births, Deaths and Marriages has estimated that 100 couples are getting married this Valentine's Day, 35 of them at the state's Chippendale offices.
Of the 19 couples getting married at Chippendale registry office, four people had the surname Wang.
Chippendale marriage celebrant Marianne Lea said it was going to be a hectic day.
"19 couples is quite a lot," Ms Lea said. "But it's lovely to carry out so many weddings in one day."
Meanwhile, 32-year-old Sydneysider Stefan Libon got into the Valentine's Day spirit by proposing to his girlfriend with a 25-metre banner pinned to the side of the Queen Mary II passenger liner.
The largest cruise ship to ever visit Australia steamed into Sydney Harbour about 6am (AEDT) on Tuesday with the words "Marry me Jess?" proudly displayed from its top deck.