Sienna Miller, 42, plants a kiss on Kelly Hoppen as her former stepmother celebrates 65th birthday with glitzy party

Kelly Hoppen is clearly no wicked stepmother. 

As she celebrated her 65th birthday,the interior designer was joined by Hollywood star Sienna Miller,42,who was her stepdaughter during her 14-year marriage to American former banker and art dealer Edwin Miller.

The pair tied the knot in 1989 when the actress was just six years old and her sister Savannah was seven. 

Displaying their mutual affection,they kissed each other on the lips at the Michelin-starred River Cafe in Hammersmith,West London.

'Big love,' Hoppen wrote next to the photograph,which she shared online.

Kelly and Sienna's father - American former banker and art dealer Edwin Miller - tied the knot in 1989 when the actress was just six and her sister Savannah was seven (pictured in 2015)

Kelly HoppenSienna Miller