Stepsister and I have sex with our teacher for better grades.

Our tutor has been helping us study, but with a twist. We've been seducing him for better grades, and it's been a wild ride. From big black cocks to fat asses, we're all in.

The teacher had a big dick, and my stepsister and I knew we could use that to our advantage. We'd been eyeing his bulge for weeks, dreaming of the day we'd get to suck on it. When the time finally came, we were ready. We invited him over under the guise of a study session, but our real intention was to get his big black cock. We stripped down to our underwear, teasing him with our curves. He couldn't resist our fat asses and big tits. We took turns riding him, our stepsister with her big ass bbw and me with my small boobs. We shared his cock, tasting each other's pussy as we sucked on it. The climax was intense, his hot cum covering our bodies. We got the best grades, and he got the hottest sex of his life. It was a win-win for everyone involved.