Eunuchs in former times used to be well-desired lovers. So long as only the testicles are removed, and the penis is left intact, they make efficient lovers. It is well-known that after orgasm, the vast majority of men have a refractory period, during which it is impossible or difficult for them to achieve erection. However, this is caused by the ejaculation, not the orgasm. Since eunuchs lack their testicles, they lack the ability to ejaculate, and do not have these refractory periods. Instead, they can have multiple orgasms in rapid succession. So long as the testicles have been removed after puberty, the male will still have a normal sex drive and his genitals will be properly developed.