Kim Kardashians Sister & Justin Bieber Spark Romance Rumours

They're both supposedly single.

But perhaps not for much longer, as Kendall Jenner, 19, and Justin Bieber, 21, surely sparked rumours of a budding romance on Thursday.

Justin posted a captionless intimate picture of himself holding onto the Keeping Up With The Kardashians star's hips while soaking up the sun in Los Angeles.