ROD Stewart froze a sample of his sperm "in case of problems", fiancée Penny Lancaster has revealed.
The model - who conceived naturally and is due to give birth next month - told chef Gordon Ramsay that she and Rod were at home when they started the preservation process, then she jumped into a Ferrari to take the results to a preservation centre.
Stewart, 60, already has six children, but it will be his first child with Lancaster, 34.
She visited Ramsay in the restaurant of his Channel 4 show, The F Word, and revealed: "We did actually freeze his sperm in case there were going to be any problems."
In the programme, Ramsay - a father of four - blames his own low sperm count on his occupation, citing long hours in constant high temperatures.