Since Megan Fox gave birth to baby Noah she has been tuning her sexy down but she has certainly brought it back in the latest Avon campaign.

Fox is who is currently expecting her second child with husband Brian Austin Greene looks stunning in the beauty brand's Instinct fragrance as she wears a tight leopard print dress with a revealing neckline.

Wearing nude sandals and sporting smoky-eye makeup the actress' gorgeous baby blue eyes draw you in. With her perfect waves and toned body Fox lets everyone know why she is praised as a sex symbol.

The fragrance ad which has the tagline of, "Let your instinct take over," show Fox in one shot holding a bamboo tree while getting some attention from Brazilian model Marlon Teixeira.

While in another shot she stands alone sporting her signature pout and flawless complexion in the middle of a forest setting.

With the latest Avon beauty campaign ad under her belt Fox join a long list of celebrities who have graced Avon with their star power including Fergie, Reese Witherspoon, and Mila Jovovich.

Check out Megan Fox's new Avon campaign ad for the fragrance Instinct by clicking HERE.