According to research in Changes in Women’s Mate Preferences Across the Ovulatory Cycle. http://archive.is/ARKof
The science is pretty clear. Women go for good genes when they're ovulating and beta resources the rest of the month. Same with short term versus long term relationships. What's interesting is the specific traits and behaviors they're attracted to, and how these traits interact.
This quote for example:
"Relative to women low in conception risk, those high in conception risk particularly preferred as short-term mates men who appeared more confrontative, arrogant, muscular, socially respected, and physically attractive. When high in conception risk, women were also more attracted to men who were viewed as lower on faithfulness as short-term mates."
You heard that right. Women are more attracted to men who they think are unfaithful.
"We also tested these effects while statistically controlling for two behavioral display indicators examined by Gangestad et al. (2004), Social Presence and Direct Intrasexual Competitiveness. In most instances, interactions remained significant or neared significance, indicating that the effects reported here are not redundant with the effects reported previously. For confrontativeness, arrogance, faithfulness, and muscularity, ts = 3.13 (df = 7986), 2.64 (df = 8081), -2.27 (df = 8057), and 1.85 (df = 7957), respectively, all ps < .041. For social respect, t(7927) = 1.51 (p = .081). For physical attractiveness, the effect dropped to nonsiginifance.t(7925) = 1.09, ns. Women rely on behavioral information when evaluating the attractiveness of men. The results suggest that fertile women are particularly attracted to these components of physical attractiveness."
What this quote is saying is that even while controlling for two big traits that were found attractive in a previous study (Social Presence and Direct Intrasexual Competitiveness), the traits in this study were still significant and the one that was most significant was confrontativeness: 3.13 arrogance: 2.64 muscularity: 1.85 faithfulness: -2.27
Basically, women love shit starting cunts.
The most interesting part was this chart: http://archive.is/lNvTs
Womens standards of attractiveness do not change across the cycle in general for all mate traits, however, standards associated with particular traits perceived systemically change. This pattern is consistent with the good genes hypothesis. This hypothesis however makes an even more specific prediction. about which male traits should be most attractive to fertile women. Fertile women should be especially drawn to men who possess traits typically values in short term mates.
Figure 1 shows the results of these tests. As can be seen, the extent to which male traits were preferred in short-term mating contexts strongly predicted the extent to which this was particularly true of fertile versus infertile women. indeed the correlation is close to perfect .93.
And thus the arrogant confrontational douchebag wins the girl while the warm faithful beta stays home and faps into his sock.
Still not enough to convince you?
Scientific proof that feminine women are attracted to men who are "threatening, volatile, controlling, manipulative, coercive, selfish, dominant, impulsive." https://www.sciencedirect.com/science/article/pii/S1090513801000666
Buckle in cause this is a long read.
Previous studies on womens attraction to masculinity have had confounding results. Some found women were attracted to masculine men while others found the opposite. I'm sure you've seen the dailymail articles claiming feminine men win in the dating game...right next to the one that says women are attracted to biological markers of high testosterone.
So in an attempt to put that to rest study separated women into two groups based on femininity; High bem-M and low bem-M. The high bem-M group was masculine and the low bem-M was feminine and presumably more attractive since a womans attractiveness increases linearly with femininity http://www.newscientist.com/article/dn8251-hormone-levels-predict-attractiveness-of-women.html
This study found that for both groups their attraction to a man for a long term relationships was correlated with his rating on the "friend" factor which was loaded with the following positive attributes: helpful, cooperative, trustworthy, good father, wealthy, and intelligent.
The preference did not change for high bem-M women when it came to short term relationships but there was no correlation between the friend factor and attraction for short term relationships for low bem-M women. In fact the only factor that predicted low bem-M womens attraction to a man for a short term relationship was their score on the "enemy" factor which is, in order of importance, "threatening, volatile, controlling, manipulative, coercive, selfish, dominant, impulsive".
Remember the low bem-M women are the attractive feminine ones.
There was also no drop off point where increasing masculinization was less attractive like there was for long term relationships. Literally the higher the guy scored on those traits the more sexually attractive he was for a short term relationship.
Combine this with the study that says low bem-M women are more likely to cheat on their long term partner during their fertile period http://www.ts-si.org/files/KristinaDuranteoestradiolandmating.pdf and the implications are, to say the least, worrying.
The whole thing can be downloaded here http://depositfiles.com/files/pwr18l7r4
So once again, alpha male Chad busts a nut across your oneitis' face while Billy Beta uses his tears as lube while he silently beats his meat into his favorite crusty sock.
TL:DR : Women overwhelmingly prefer domineering smug assholes that have musculature for short term sexual relationships. The nicer and more faithful you are to an attractive feminine girl the less sexually attracted she will be to you. Be bold, be cocky, be in charge, be aloof.
Edit: Shout out to daffy_duck233 for clearing up some confusion I had about the significance of social respect, which has very little significance in both ST and LT relationships.