<human>: I'll make it simple. 

He liked me back in high school. He never told me. I liked him back, too. I never told him... but we've been best bros since as far back as I can remember. I guess both of us just didn't want to ruin a good friendship. I even took on the roll of wing-man for him several times. However, during homecoming dance he kissed me. We've always called it a fluke and "it happened in the heat of the moment".

Until recently, when we started talking again after losing communication due to college and work. He admitted he liked me a lot in high school and regrets not telling me. I told him I felts the same way. We agreed that we should give us a chance, when we live in the same area. We're kind of far from each other, at the moment.

A week after we started to talk, we decided to hang out at his place. Played 21 questions, and that escalated to asking raunchy questions. Soon, he was turned on. I was turned on. Next thing I know, we're in bed together and, for lack of better words, sated. 

He's asleep now. I was too awhile, until I realized the gravity of what just happened. I don't know what to make of it. I'm scared of what will happen when he wakes up.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: I slept with my best guy friend. I'm scared of what what will happen when he wakes up. What should I do? How do I approach this?