Lindsay Lohan further fuelled rumours she is planning to marry her girlfriend last night as she flashed a sparkling ring on her engagement finger.

The actress proudly showed off the heart-shaped jewel as she accompanied Samantha Ronson on a DJing gig in New York.

With this bling: Lindsay Lohan stepped out in New York last night with a giant ring on her engagement finger

Wedding whispers began earlier this week after Samantha made a surprise announcement while performing at a party in Los Angeles.

'By the end of this year, my love will be Mrs Ronson,' she reportedly told the crowd.

While Lindsay has so far kept quiet on the rumours, she has said that the pair are more serious than ever, and even have matching tattoos.

Inseparable: Lindsay and Samantha, who have matching tattoos, are planning to buy a house together

She told Marie Claire magazine: 'Samantha had some stars so I had some done as well.

'I am very happy. She is a fantastic person who has a great influence on everyone around her.'

Lindsay also hinted that the pair, who have been living together since May, are currently looking to buy a new home together.

Betty and the city: Before hitting the town, Lindsay spent the afternoon shooting Ugly Betty scenes with America Ferrera