Lena Dunham admires Portia de Rossi's eyebrows.

She told Portia's spouse Ellen DeGeneres: "Portia and I actually got to share a golf cart to set.

"The biggest take away that I had was that your wife has the best eyebrows in the business."

The 'Girls' star was also surprised at how quickly she has to say her dialogue in her scenes.

She added: "We weren't in any scenes together, but we were both trying furiously to learn our lines. And talk really fast. Like I talked the fastest I could possibly talk and then they said, 'Faster'."

Lena - whose sister is a lesbian - is happy in her relationship with Jack Antonoff but has previously stated they won't wed until same-sex relationships are also legalised and she says it wouldn't feel like a "celebration" if she was doing something other people can't.

She said: "Well it's something that the idea of having a celebration that can't be fully shared among all the people in my life and all the people that we love just doesn't really feel like a celebration at all.

"So until that's something that everyone can join into with no sense of being left out on any level, politically, emotionally, it's just not something that we're going to do."