Dec.10 (GMM) Sebastian Vettel is set to celebrate his meteoric F1 success with the ultimate prize -- fatherhood.

Multiple authoritative German media sources on Tuesday, including the Bild-Zeitung newspaper and the Bunte magazine, report that the quadruple world champion's long-time girlfriend Hanna Prater is pregnant with their first child.

Hanna Prater, the girlfriend of Sebastian Vettel, Red Bull Racing Photo by: XPB Images

Red Bull driver Vettel, 26, guards his privacy very closely, but his spokeswoman confirmed the happy news: "Yes, it's true."

Vettel was quoted as saying: "Of course we are very happy about it, and want to enjoy this time in peace."

Vettel and Hanna have been a couple since they graduated from high school in Heppenheim.