if i'm gossip girl, who is blair and Serena?

 morning, upper west siders, am i back too soon? 💤💤💤

cuh its a monday morning at that, always tragic, maybe moreso than that of the failed chosen 4 this morning. 

anyways, i recieved an inquiry this morning that certainly peaked my interest:😘😘😘

so who is it? blair and serena. DM me your thoughts, if you dare.