In few photos, the 21-year-old actress seemed inseparable as she could not let go of the singer's arm while they were walking out of restaurant 34 Mayfair, reported AceShowbiz.
Turner opted for a wooly voluminous black jacket with baby blue sections at the sleeves. She paired it with high-waisted dark jeans.
Jonas, 27, sported flaming red bomber jacket paired with black jeans.
The two have been rumoured to be in a relationship for several months as they have been spotted together many times. However, they are yet to publicly announce their romance.