One would simply have to be smart and understand that today, EVERYTHING is being "influenced" (i.e., polluted) by feminism, and feminism is obviously pro-slut-acceptance and fat-acceptance etc. Therefore, studies that have been made IN ACKNOWLEDGEMENT of times changing, like the one you linked where it says:
"Secrets of the average woman's love life: She's losing her virginity younger, having more lovers than ever - and is four times more likely to experiment with lesbian sex"
-Average woman is losing her virginity aged 16
-She now has eight partners, compared to 12 for men
-Four times more likely to experiment with other women
-However overall she is having less sex than in the 1990s"
should be noted that these are women being polluted by feminism and "progression." They are damaged and have a grade inflation for what is considered normal/good, JUST like the ideal BMI range.
For example. The 1959 Met Life height-weight insurance charts are the most accurate (before American “grade inflation” made obese the new normal) for BMI. A 5’10” 140lb woman would have a BMI of 20.1, which puts her well within the most desirable BMI category.
In 1959 MetLife Normal BMI range was 18.5 to 24.9, this was considered a females healthiest BMI (BMI of 20 or 21 being the absolute sexiest). This was of course before feminism and all the u-go-grrl fat-acceptance movement. Today, the range has been INCREASED in order to make fatties feel better about themselves.
The exact same thing has happened with a woman's sexuality. Women are encouraged nowadays to slut it up and have fun and find themselves sexually before marrying some sexually repulsive wimp who will provide for her. Like you've said in your rationalization that feminism has polluted with - "it's college! people fuck!" Therefore the notch count for women has risen, and has become more "socially acceptable" to beta cucks who are so sexually and socially oblivious - but not to real Men worth a damn who have plenty of sexual options.
https://heartiste.wordpress.com/2008/12/29/its-easy-to-identify-a-slut/
"0 lifetime partners: Sweet virginal manna. A bit weird, but you’re confident you’ll break her in. 3 lifetime partners: Typical woman. Wife and mother of your children material. 10 lifetime partners: Above average. Proceed with caution. 15 lifetime partners: Well above average. Be dominant or she’ll cheat. 25 lifetime partners: A whole lot. Use her and lose her. 100 lifetime partners: Stopwatch material. You wonder how fast you can get her from “Hi” to “Spread your ass cheeks, I’m going in”.
"I suspect that overall female sluttiness (actual penis in vagina sluttiness, not sluttiness as defined by proxy fashion trends) has increased slightly over the past 40 years, with the blue state city chicks fucking around more than ever and the red state religious girls fucking around less. It goes without saying that only the top 20% of men are enjoying the emergent slut bounty."