 A common starting point for the claim that gamete donors acquire parental responsibilities is to highlight the strong intuitions we have about parenthood in cases other than gamete donation. Normally we think that those who wilfully engage in procreative acts acquire parental obligations if children are created as a result. This is true even when procreation is unintended, due to faulty contraception for example. The strength of this intuition is used as motivation for adopting a causal view of parental obligations. On such views, creating offspring in the right kind of way is sufficient for the acquisition of parental responsibilities. Those who think that gamete donors have parental obligations proceed by arguing that the most plausible causal accounts of parenthood must include gamete donors (Nelson 1999; Fuscaldo 2006; Blustein 1997).