A guinea pig called Sooty enjoyed a night of passion with 24 females after fooling his way into their cage in south Wales.
Sooty wooed the lady guinea pigs, one by one, and has now become the proud father of 42 baby guinea pigs from his two nights of passion.
His endeavours left staff at Little Friend's Farm, Hopkinstown, Pontypridd, amazed at his stamina.
Park owner Carol Feehan, 42, said: "I'm sure a lot of men will be looking at Sooty with envy.
"We knew that Sooty had gone missing and we looked for him everywhere but never thought of checking the pen where we keep the females.
"We did a head count and found 25 guinea pigs - Sooty was fast asleep in the corner.
"He was absolutely shattered - we put him back in his cage and he slept for two days."
Staff at the farm park tourist attraction thought Sooty might have hit the jackpot, but it was not until 10 weeks later that his night of passion started bearing fruit.
The farm park - which is closed for the winter - is now trying to find homes for Sooty's brood of babies.