Are You Third World or First World, in Bed?

She found that men who were judged to be more "masculine" and women who were considered more "attractive", were likely to be seen as more inclined towards casual sex - and to actually be so (Evolution and Human Behavior, vol 29, p 211).

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It also raises the more fundamental question of why individuals have such widely varying attitudes to sex in the first place. The answer is not simply that beautiful people have more opportunity.

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They found that certain attitudes and behaviours co-vary - people who tend to have more sexual partners are also likely to engage in sex at an earlier point in a relationship, are more likely to have more than one sexual partner at a time, and tend to be involved in relationships characterised by less investment, commitment, love and dependency.

New Scientist

I'll cite another source, and let you draw the comparisons between these two sources:

Most recently, an "environmental" r-K theory has been espoused (see Figure 4). Belsky, Steinberg, and Draper (1991, p. 647) succinctly described two diverging pathways: One is characterized, in childhood, by a stressful rearing environment and the development of insecure attachments to parents and subsequent behavior problems; in adolescence, by early pubertal development and precocious sexuality; and in adulthood, by unstable pair bonds and limited investment in child rearing; the other is characterized by a stable and secure childhood and longer lasting marital bonds in adulthood.

LRA

r strategy: breed chaotically, frequently, and invest little in offspring;
K strategy: breed deliberately, with partners for life, and invest a lot in the offspring.

Sluts are r strategists, e.g. nonstrategists. Breed like an r, end up producing dumb, narcissistic, reckless children -- a path to the third world.

Traditional values (home in first world nations!) emphasize not only K strategies, but finding a transcendent reason to see and amplify beauty in it. We call that love.