A Perth teenager has reportedly swept Harry Potter star Emma Watson off her feet in London. Angus Willoughby, 19, is rumoured to have struck up a relationship with the 18-year-old actress while studying at London's Royal Academy of Dramatic Arts.

The former student of Perth's exclusive Christ Church Grammar is even planning on showing Watson a WA getaway this summer, taking in the state's beaches and wineries in the south-west, the West Australian reports.

Angus is the son of the late Olympic rower Tim Willoughby, who died suddenly alongside his son on a flight in January. The father-and-son pair were returning from a US skiing trip to celebrate Angus completing Year 12 when the 53-year-old suffered a heart attack en-route to Singapore.

Willoughby was a member of the bronze medal-winning men's eight rowing team at the 1984 Los Angeles Games before becoming a successful banker and WA member of the International Olympic Committee. Like his father, Angus is a keen sportsman and enjoys water sports and rugby. Watson, who plays Hermione Graigner in the massively popular Potter films, has made an estimated $23.2 million out of the fantasy franchise.