London was lit with the fire of luuurve Thursday night!
Liam Payne brought vampire One Direction fan-fiction to life when he went to nuzzle on his girlfriend's neck after a night out on the town.
We'd totally give our mortal life to switch places with Sophia Smith!
What a lucky bird!!
But if they keep this PDA train on the tracks, we might just get too jealous and demand a ticket on the Liam Express! Ha!
[Image via BauerGriffinOnline.]