 Arguments of this kind are dealt with in much more detail in the entries on  Exploitation,  Feminist Perspectives on Sex Markets,  Parenthood and Procreation,  Informed Consent, and  The Sale of Human Organs.  For the present, we simply note that, while the possibility of defective consent and exploitation must be taken seriously in any system of paid gamete donation, there seems no reason in principle why paying for gametes must be exploitative, nor why it cannot be validly consented to. Provided that the payment-levels are fair, and that the provider’s situation, mental capacities, and access to information are all sufficiently favourable, it is hard to see why—in common with other financial transactions—gamete provision can’t be validly consensual and non-exploitative.