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With rising rates of adoption and surrogacy, induced lactation is likely to become increasingly relevant, allowing women who did not undergo pregnancy to breastfeed. We describe the case of a woman with complete androgen insensitivity syndrome (CAIS) on conventional oestrogen therapy who was expecting a child via surrogacy and who wished to breastfeed. The woman was commenced on supplementary oestrogen therapy, domperidone and breast stimulation by mechanical breast pump 8 weeks prior to the delivery of her child. Following delivery, the patient produced a small, unquantified amount of milk, allowing her to suckle the infant for a short period of time. Induced lactation is possible in chromosomally XY individuals. It has been most successful in cis-women and transwomen, both of whom have had progesterone/progestogen exposure to the breast. We suggest that the addition of a progestogen to our patient’s treatment regimen, either as part of her original hormone therapy or part of the lactation induction program, would have improved her changes of establishing successful lactation.