I almost fucked up big time back in my years in high school, but managed to save my ass with the power of my mouth.
Life had been hard and yada yada, so I resorted to smoking and alcohol, even before my morning classes started. I didn't really care that much back then. However, it all went to shit when the new semester started and my professors started to notice the lack of engagement from me. They started dropping warnings, but I didn't care. Until I got called to the principal's office.
I knew I was fucked. And sure enough, he told me that I was being expelled for academic dishonesty (that's what he said, idk if that stands, don't give a shit). I begged him to give me a chance, and he asked me to do one more assignment then. But it had to be an extra-credit one, and it had to be done right away. So, here's where the sucking part comes in. The principal told me to come back to his office during lunch, and once I was there, he said he needed to see how "serious" I was about my second chance. He said if I could please him, then he'd forget the whole thing and let me off with a warning. I couldn't afford to be expelled, so I just got on my knees and began doing my thing.
He sat back and started caressing my hair as I took him into my mouth. Then he told me to go deeper. I had never given a blowjob before, so it was pretty scary, but I knew what I had to do. After a few bobs, I heard him moan, so he grabbed the back of my head and shoved his dick all the way down my throat. I gagged, and he kept fucking my face. I moaned loud all the time, exaggerating some noises so that he could get hornier, and it seemed to work, because he increased his speed. I had to get away from him for a moment, just because it was too much.
I got back to him by licking the underside of his cock, from the balls to the head, and then I engulfed the whole thing, trying my best to get as much in my mouth without his aid. My nose was buried in his pubes and his tip was in my throat, making me gag violently. My head movements got faster and faster, and his moans became louder, until he started grunting. He put his hands on the sides of my head and pulled me off his cock. I didn't know what was going on, but then he came, and all of it landed on my face. It was a lot of cum, and he took his time, stroking himself all over my face, making sure not a single drop fell on the floor.
Needless to say, I got my credits, and he told me to come back to him if I ever needed extra help again. Can't say that I won't.