Wiz Khalifa and Amber Rose

Wiz Khalifa will move the weed smoke outdoors and away from pregnant girlfriend Amber Rose.

She is worried for the baby, so he will no longer smoke marijuana at home.

The 25-year-old rapper - who was arrested twice this year for possession of the herbal high - has agreed to indulge his habit away from his lover Amber Rose because it ''irritates'' her.

He said: ''I smoke outside instead of inside. Everything is all about smells, man. If the smell irritates her, then it gotta go.''

Wiz - whose real name is Cameron Jibril Thomaz - also admitted he and the model know the gender of their unborn baby but don't want to tell anyone yet.

He told MTV News: ''I do know, but then [Amber] told us not to say yet. We'll wait until she's ready.''

And the couple are finding choosing a baby name ''difficult'' - but Wiz expects Amber will have the final say in the moniker.

He said: ''We're working on it. You know how difficult that is.

''But it's all good, though. I let her have her way all the time; that's my baby.''

© Bang Showbiz