Lily Collins finds kissing scenes ''super unsexy.''

The 24-year-old actress - daughter of rocker Phil Collins - stars in new film 'The Mortal Instruments' alongside Jamie Campbell Bower and although they were rumoured to have enjoyed a romance off-screen, she says filming kissing scenes between them was a turn-off.

She said: ''I promise you that it is super awkward ... and super unsexy because everyone's staring.''

Lily remained coy when asked about her relationship with Jamie - who split from his fiancée, Bonnie Wright, last year - and whether they are still together.

She added to Glamour magazine: ''We took that chance and ...Whatever ... It is what it is. People are cast because they have chemistry. You're spending 24 hour days together and it's intense.

''You have that connection with each other and sometimes that translates to more.''

Lily - who is also rumoured to have had a fling with Taylor Lautner - has previously said it was ''inevitable'' she would become an actress, rather than following in her famous father's footsteps.

She said: ''I started acting when I was two. I think becoming an actress was inevitable as I've always loved dressing up and telling stories, but it was never pushed upon me. I wanted to be a lawyer, ballerina, fashion designer and work at the supermarket. But whatever I wanted to do I was supported.''