Lindsay Lohan was all smiles as she arrived in London from Paris on the Eurostar early yesterday evening.

But her cheery mood soon vanished after she was made to walk through St Pancras station to her chauffeur-driven car with a bunch of cameras in her face.

Lindsay is in the capital to join on-again girlfriend Sam Ronson for some lucrative club nights, and for a photo shoot.

Meanwhile, Sam – who has already been in London for several days – was snapped leaving Mahiki at around 2am after playing a DJ set with a chunky ring on her left hand.

The National Enquirer is currently reporting that Lindsay has volunteered for IVF so that she and her girlfriend can have a baby together.

Maybe they intend to go the traditional route and tie the knot first?

Lindsay & Sam's love story