These 3 girls are so fun - but who are they?

Ok so the two on left and right are sisters. Middle on is hottest (IMO) and probably the leader of this thing. Now what kind of a dude gets 3 chicks like this on camera- I mean the sisters are may be 18-22, other one is 23-27. This is American (chick says fuck twice).. so who are they!?
 
I'm pretty sure the one in the middle is Alicia Klass.

CORRECTION (SPELLING) - Alisha Klass.

Yeah, it's her, I'm rather sure of it.
 
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