I think people may be underestimating the khandaan factor.
The success or powerfully well connected and elite family background deffo has its part. I think that was one reason why Raj Kapoor also used so many women easily and Amitabh also managed to get lot of women despite being married or having kids.
Women seem to get attracted to the pedigree, and hope to get an upgrade in life through such elite background. I guess Salman also got girls for similar reason as Salim Khan is also a legend and well connected and Khans are also known to help ones they consider friends or close.
I highly doubt men like AB sr, RK sr, Ranbir, Salman, Sanjay Dutt would be able to get so many girls if not, partly, for the elite families and well entrenched network they belong to.
Ranbir's GFs meeting his parents and trying to win over his sister seem to give indication of khandaan being a huge part in the attraction too.
Being the only son of Rishi and Neetu and the only male star from Kapoor clan in last 30 years since Rishi, added to the attraction factor to cling to him someway regardless of how he behaved in real life or how many girls he had already been with.
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