The On The Road actress looked casual in a navy hoody, black jeans,vintage RayBan sunglasses and wore her hair pulled back into a loose ponytail.
We're not quite sure why KStew's flown to London without her beau and it's got us thinking about what she's got planned whilst she's here...
1. Is she here visiting Rob's family? With Rob away filming is KStew putting in some time with his folks, catching them up on all their news?
2. Could Kristen be house hunting? The pair have been rumoured to be moving in together for a while now, renting a house whilst filming for the Twilight Saga last summer. Are they looking to set up house in the UK?
3. Could she be in the city for work meetings? She's been confirmed as Snow White in Snow White and the Huntsman and is also working on K-11 which is being co-directed by her mother.
4. She's picking up some of Rob's clothes/possessions, ready to take back to Toronto for the summer? Surely he could afford to have them couriered though...
We'd like to think that Kristen is going to be spending some quality time with Rob's family, in which case, does that mean a ring is going to get put on it soon?! SQUEAL!
