Sentence:  Since the babies were born I've turned into a 24/7 milking machine, a bilingual nursery-rhyme jukebox, a prolific laundress, a bum-wiping wizard, a baby <WSD>juggler</WSD> and two-armed synchronised cuddler. 
Meaning of the word marked with <WSD> tags:  Agent noun of juggle; one who either literally juggles objects, or figuratively juggles tasks.