On-again-off-again girlfriends Megan Barton-Hanson and Demi Sims are certainly back on, as the pair packed on the PDA while parting at We Are FSTVL in London. Former Love Island star Megan, 29, donned a backless blue handkerchief top and a baggy pair of dark-denim wash jeans. Meanwhile Demi, 26, sported a black bra top, which she paired with a denim co-ord.The loved-up duo were snapped with their arms wrapped around one another, and later were seen holding hands.