Did we trick ourselves?

I suspect you might be wondering how the two of us ended up here, in this hotel room, naked, on opposite sides of this huge bed?
I'll tell you, but first of all there is one thing I want to be absolutely clear about: I'm not gay, and I suppose it's worth mentioning that neither is he.
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About me: I'm 19, good looking, got great grades in school and I know exactly where I'm going in life. I'm in control of my life, and I like it that way. I also like controlling others, but that's not something my friends knows since it has nothing to do with them.

About Zack: In short, he's my opposite. He's got horrible grades and surfs through life as if it promised to take him to amazing places either way. He's also soon to be 19, and I guess I can admit that girls seem to find him good looking.
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What happens to these 2 young guys?
Well if it wasn't obvious by the description; one of them is surprised to find himself being a woman all of a sudden!
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This story contains sexual content and BDSM (gay and straight)