Lindsay Lohan and Samantha Ronson made their feelings for each other clear when they shared a tender moment on the street in New York.

After a shopping trip in the Soho district the amorous pair were seen kissing outside the Mercer Hotel.

The public display of affection shows the couple are happy to let the whole world know about their relationship.

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Lip-smacking: Lindsay and Samantha are open about their feelings

Samantha also came to visit Lindsay on the set of Ugly Betty, as she filmed scenes for a guest appearance on the hit show.

The pair were obviously relaxed in each other's company as they crouched on the floor for an intimate chat and Samantha played around with a digital camera.

The actress will once again appear as Betty Suarez's high school rival, cheerleader Kimmie.

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Chilling out: The pair enjoy a relaxed chat on the set of Ugly Betty as Lindsay films scenes for the next series

Speculation the pair's friendship had turned to romance began last year after they were regularly spotted partying and dining together. 

As the months went on they have become more candid about their close relationship and have made it clear they are a couple.

When the 21-year-old's father Michael Lohan told reporters he blamed 30-year-old Samantha for her drinking she wrote on her MySpace page: 'He has become a public embaressment and a bully- To my family, my co- workers, my friends, and a girl that means the world to me (its obvious who that is).

His recent attack on my life and my loved ones is simply for an ADDICTION THAT HE HAS - FAME. Samantha has not and would never sell me out. Nor has my mother, who is wonderful.'

Samantha - sister of producer Mark Ronson - also hit back at Michael on her blog: 'I feel no need to publicly defend my role in Lindsay's life - I'm just sorry that she likes me more than him.'

Guest appearance: America Ferrera and Lindsay Lohan film on location for Ugly Betty