I am a monkey (female) and 12 years older than my boyfriend who is also a monkey. Is there hope?

We get along quite well but I worry that our age difference will present problems in the future as we age. I know monkeys are sexually precocious and am worried that I may not satisfy his desire to explore new things once I become "usual". I am a monkey too and I have been quite flirtatious in the past so I know the exhilaration of having a new conquest. Are my worries justified?