Scarlett Johansson is about to become the sexiest mom alive.

The 29-year-old actress, who was named Sexiest Woman Alive for a second time last year by Esquire magazine, is expecting her first child with her French fiancé, Romain Dauriac, according to a report.

Johansson, whose voice starred in the sci-fi thriller “Her,” is already five months along on her pregnancy, TMZ said.

Johansson announced her engagement to Dauriac, the former editor of a French art magazine, in September.

She divorced actor Ryan Reynolds in 2011 after about three years of marriage.

Dauriac gave Johansson a vintage Art Deco diamond ring for their engagement in the fall.

After appearing in more than 30 films, the sultry Johansson has said she intends to try her hand at directing in the future.