You consider it, until you stumble upon your first rune

Telling your friends about the changes that you can make could be helpful, but it's a big decision to make. You decide to think on it, instead turning your attention to your bag. You pop it open to pull out your lunch.

Unfortunately, you had forgotten that you had pulled down your elf rune yesterday and stuffed it into your bag. Not a big deal as Mark, of course, but as Mac? You can feel the magic working, only realizing it is thanks to the awareness rune you constructed.

Your shoulder length hair turns the same shade of red as your sister's, your skin also altering to match her new skin tone. You feel your face alter slightly, mainly focused on your eyes and ears, the former becoming emerald green and the latter becoming long and pointed. You grow a few inches taller, and your stomach flattens out and gains just a bit of muscle.

If that had been where the changes ended, you would have been satisfied. Instead, you feel your chest expand into large breasts, easily matching your sister if not exceeding her. Your hips and ass grow as well, giving you an hourglass figure.

You feel uncomfortable for a moment, until your clothes change. Your jeans are remolded into a pair of tight booty shorts, while your top shrinks around your breasts, becoming a blue bikini top.

You groan slightly, but it comes out as more of a moan. This is not what you wanted when you made that rune. You can already feel yourself growing aroused thanks to your new body.

"You here for a pick me up, Mac?" Rufus asks, grinning at you. Images flash in your mind of him bending you over, going to town on you with his big, hard dick.

You bite your lip and swallow. You need to decide what you're going to do.