The intense connection between the characters in "Pushing the Limits" by Katie McGarry is vividly illustrated through the metaphor of a kiss as an addictive drug. The protagonist experiences an overwhelming desire, feeling a compulsive need for more intimacy with her partner, which highlights the powerful emotions and physical sensations associated with love and passion.

This imagery emphasizes the inseparable bond formed between them, as they become so closely intertwined that the individual identities blur. The profound closeness signifies not just a romantic relationship but a deep emotional entanglement that leaves them craving each other, showing how love can envelop and transform one's sense of self.