Things must be getting serious between Sienna Miller and Rhys Ifans. The actress has introduced her lover to her stepmother Kelly Hoppen, and she has given him the seal of approval.

Kelly and her boyfriend, hairdresser Nicky Clarke, joined the couple for dinner, and by all accounts it went very well.

Interior designer Kelly said: "He's intelligent and funny. He makes her happy, and that's all that really matters."

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Approval: Sienna Miller, seen here in LA, took boyfriend Rhys Ifans to meet stepmother and interior designer Kelly Hoppen, and new beau, hairdresser Nicky Clarke before leaving for LA

Kelly brought up Sienna from the age of six when she married her father Edwin.

With the couple now separated, she still plays a motherly role, saying: "I brought up Sienna and her sister Savannah as my own."

Stepmother Kelly Hoppen with partner Nicky Clarke: She has given her seal of approval to Sienna and Rhys' relationship

Meeting the parents is never easy, but Rhys, 39, who was reported to have given Sienna a "marry me or it's overî ultimatum earlier this year, had no need to worry.

Kelly told us: "We all went out for dinner and Rhys is great. He gets bad press, but I've no idea why."

The pair started dating last August, but have never publ icly admitted they are an item.

Last year how Rhys moved in with Sienna when his houseboat suffered a leak, but spent months denying they were together.

Sienna took the opportunity to introduce her stepmum and boyfriend before flying back to LA to film the comic book adaptation GI Joe.

Kelly said: "It's not the sort of role she normally does, but she's enjoying it."

Boho babe: Sienna has decamped to Los Angeles to film comic book adaptation G.I. Joe