 There may however, be aims other than secrecy and concealment. These may have their basis in concerns regarding compatibility (wanting our children to be ‘like us’ and to ‘fit in’) (Ruddick 2000; Wong 2017), premised on physical or psychological desire (we often choose our reproductive partners because they possess characteristics that please us), or even with the aim of avoiding offence – a member of a couple may be offended if his/her partner prefers a donor with characteristics markedly different from his/her own (Pennings 2000). Importantly, matching motivations are distinguished from other motivations for selection as they are limited only to desires to select for donors with characteristics possessed by one/both intended social parents and should be based only in a desire to attain resemblance between parent and child.