The 'Factory Girls' actress - who dated Jude Law for two years and has been
romantically linked to a string of men, including Daniel Craig, P. Diddy and
Sean Bean - denies she is as promiscuous as people think.
She said: "I always hear things about me and different men. Is my nickname
Sleeparound Sienna? I can assure you I'm not."
To add further weight to her claims, the 25-year-old star has rubbished
rumours she is dating 'Notting Hill' star Rhys Ifans.
The 39-year-old actor recently moved into her London home, but Sienna
insists their living arrangement is totally innocent.
She said: "He lives on a boat and it has flooded so at the moment he is
sleeping on my sofa.
"I gave him a place to stay because that's what friends do."
Speculation the pair were more than just friends surfaced after they
holidayed on the Spanish island of Ibiza last week.
Sienna was spotted sunbathing topless in front of Rhys and reportedly even
shared a passionate embrace with him as they waited in the airport for their
return flight.
One holidaymaker said: "They were all over each other. Sienna kept nuzzling
her head into his chest and he repeatedly kissed her lips and cheeks.
"I have no idea what she sees in him - he's so gangly. But Sienna is
beautiful, very petite and just gorgeous".