The phrase "sexual attractiveness" refers to being appealing or desirable to someone in a romantic or sexual way. It refers to the characteristics, behaviors, or appearance that make a person attractive to others. Full definition
I've read that, statistically, people of both genders usually overrate their own sexual attractiveness a little. (omgchronicles.vickilarson.com)
In this study, we show that manipulation of dietary carotenoid supply invokes parallel changes in cell - mediated immune function and sexual attractiveness in male zebra finches (Taeniopygia guttata). (science.sciencemag.org)
Male sexual attractiveness predicts differential ovulatory shifts in female extra-pair attraction and male mate retention. (scienceofrelationships.com)