Charlie was your average middle class suburban kid, currently studying at college. He was good looking, had an athletic body, a decent enough sized dick and did OK with getting girls but was certainly not a lady's man.

Like every guy at college, he jerked off regularly and particularly enjoyed watching porn where the girl would be fucked by a big dick which also meant an enjoyment of interracial porn. Additionally, Charlie weight trained and despite being in good shape, he dreamed of being really big and muscular. This also reflected in the porn he watched as he would enjoy watching hung jacked guys with hot girls.

Charlie's laptop had recently broken and so while working on an assignment he found himself in the college library. While pretending to search the bookshelves as a distraction from the assignment he discovered an old, dusty book tucked away behind the other books. There was something about this book that Charlie was drawn to and so he opened it to a page that had its edge folded as if to come back to.

Upon the page were the words "We are spirits bound to a human vessel, but the vessel is not fixed. Utter the words below to take any form you desire."

"What on earth was this?" - wondered Charlie. "I can change how I look with this spell? - whatever, this isn't going to work."

Just to prove it, Charlie began to read the spell while thinking how he'd like to look if he could switch bodies for a day. He felt a strange sensation come over him and felt his body starting to change shape...