We do forbidden things because some anonymous (or many times not) force tells us that it's ok, that one time won't hurt you, that it's no big deal, just go ahead because everyone else is doing it. I don't believe in peer pressure. In the end it all just boils down to you making your own decisions, and those decisions are based on a large number of factors - not only friends. But I do believe in the Rex Reese present in all situations. The lingering spirit that doesn't outright tell you to go ahead and do it, but has just been doing it all along itself that you must be sure it's ok. The spirit that makes you passionate and jealous and hungry for vengeance. That sly young creature that woos the one you love and draws you in with tactics that you barely notice until you've already done everything you're not supposed to. It's not peer pressure. In fact, it's the exact opposite. You're taunted by the subtle actions and almost unnoticeable things that the Rex Reese spirit performs, things that don't just jump upon you but snake their way gently into your life.
Calliope first discovers her "lesbianism" (if you can call it that - she's not exactly a "girl") when she encounters the new girl in her class, an unnamed redhead who goes by the alias "The Obscure Object", usually shortened to simply "The Object". Calliope hides in the shadows of her affection, admiring The Object from afar, making the occasional "risky" move, yet never venturing too far. One day at a party, The Object's brother, Jerome, brings along his friend Rex Reese, the handsome bad boy rumored to have driven his car into a lake, with his girlfriend in it. The Object is smitten with him as he makes eyes at her, and immediately Calliope picks it up and her jealousy radars start firing. Suddenly nothing is too risky. Calliope does what Rex does, trying to emulate his persona to win back The Object. One debauched night in the middle of the woods, Calliope follows the actions of Rex and The Object - smoking weed, inhaling someone else's fumes, drinking cans of beer, and eventually, in her drunkeness, lets Jerome, well, you know. It's a totally sudden shift in personality, caused in part by Rex Reese.
Now, the overprotective mothers of the world would place the blame solely on that Rex kid, the bad one who had a negative influence on the young'uns. But no, that's only the tip of the iceberg. Besides the whole aspect of willpower in people (or lack therof), there are a thousand other things we have to take into consideration about why we're driven to do the things we do. In Calliope's case, jealousy and undying affection for The Obscure Object was the biggest factor which made her do all those things. Peer pressure can take many forms, and in some cases it can't even be considered peer pressure because of its ingenious subtlety. Rex Reese's tactics were so effective and clever that he probably didn't even realize that he was doing them. It was his lack of pressure that drove Calliope crazy. It was the effortlessness with which he wooed The Object that made Calliope go crazy. Peer pressure, if it even exists, doesn't really depend on the verbal aspects, it's almost always the person who's saying them that matters. The most effective form of "peer pressure" is one that is so sneaky that it takes you over before you even notice. It's personified with actions, not words. Peer pressure takes the form of Rex Reese, the boy at the party and in the back of the classroom.