The 19-year-old father-to-be is responsible for the pregnancies of Mawar (15), who will give birth in June, and Julitta (29), whose baby is due in late July or August.
And, as the Sumatran orangutan is one of the most threatened of the six great ape species and is classified as critically endangered, he has every right to be proud of his virility.
Keeper Gordon Hunt said the two females were getting a great deal of special care.
The vast majority of their food is grown on the Zoo’s organic farm and is picked and fed on the same day while it is very fresh.
‘Like human mothers-to-be, Mawar and Julitta are being given Pregnacare as a supplement, to make sure they get all of the essential vitamins and minerals they need,’ he said.
Jersey Zoo have kept Sumatran orangutans since 1968 and there have been eight births during that time.