The ones that wrap their leg around me are the more extraverted girls. wrapping their legs around me is just like a clothed sex position. I only assume they are horny because i know i can push the boundaries further sexually with them (meaning neck kissing and a touch and feel in public) the shy ones that dont wrap their legs around me, dont really do this.
i have tried it on girls i have met that night. and spoke to for about ten minutes and they loved it.
I would not reccomend doing this to girls in A) short skirts B) ones that are self conscious about their weight although this may make them feel better knowing you can easily pick them up.
i had this issue with the short skirt (i didnt even think about it until she freaked out) what sucks most i didnt even get the view
lol hope you understand my distracted typing, and i hope this helps.