We have added to our theoretical explanation for why there would be gender differences (see the section titled Gender Differences in Sexual Behavior, Attitudes, and Sexual Subjectivity, p. 4).
Age was positively associated with T1 entitlement, and experience with a wider range of partnered sexual behaviors was concurrently associated with more entitlement and efficacy and was also associated with increased entitlement to partner pleasure and increased self-efficacy in achieving sexual pleasure at T2 relative to T1.