There is a lot of research citing that men are more physically primed for sex than women. Graziottin (2004) discusses this difference and other differences of strength and vulnerabilities between the sexes:
The clinical correlate of the neurobiological condition is that men have a stronger, more biologically and genitally focused sexual drive, expressed more as lust (7). Women tend to have a romantically driven sexual drive with a more relational expression and emphasis on intimacy (6,7). Women have a stronger oestrogen priming of two other basic emotions command systems, the fear- anxiety and the panic with separation-distress, which contribute to and modulate their parenting abilities and social bonding skills (2,19). The gender-based different biological modulation of seeking pathways in men and women may be an important contributor to different desire vulnerability in the sexes, both in the early phases of a relationship and later stages of a long-term relationship (34,35).
Is it really fair to say that men are more inclined to benefit by casual sexual encounters than women, or is this a presumption stemming from social-stereotyping?