Styles, 19, is said to have set his sights on the 'Wrecking Ball' hitmaker after her wild antics and racy twerking during her performance at the award ceremony, reported Contactmusic.
"It's no secret in Harry's circle he's obsessed with Miley. It started when she cheekily pinched his bum at the VMA awards. Afterwards he made a few jokey comments about her on TV and then dressed up as her for Halloween.
"So he decided to message her to make sure she wasn't offended by any of his remarks or actions. She wasn't - and they've been texting since," a source said. Flirty