Re: They all want me, still... why?
First off the reason why they want it more is that if they hear you're a killer in bed that's a huge DHV. Now the reason none of the other girls care is likely a few different reasons:
1)They want what they can have and since you and this other chic aren't dating they don't see it as bad that want you merely a challenge.
2)There's a sort of unannounced challenge to see who can get you next.
If these girls are good wings and have many other hot friends outside that you are constantly meeting than it may be best to keep them as friends. However if you really want them go for it... golden opportunity.
In life you get what you put into it.