You just said you just wanted some dick 'fore I stuck it in
I wouldn't have been such a prick to you,
Em claims to have an over-average sized penis See Almost Famous
Means if only she told him before they had sex that she only wanted sex, and nothing else then he would not have invested emotion into her and fell in love but it’s too late and he acts like a prick because he feels cheated or used by her.
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