I [F] was gangbanged by my students who I am teaching

I was super broke and I don’t know what I was thinking. One of my students was the son of a billionaire and I really wanted some money. I was a few months behind on rent and knew that he would help. I even tried to make sexual advances to him but he flatly refused but figured that he should ask his son once, who said yes. After quite a bit of negotiating, I was able to get him to agree to a sum of 60k for a night and he could bring along his other class mates. I had been teaching his son and his friends for a couple of years, so I had to charge a premium given that I had to teach him for a couple of years more. And I have done a couple of gangbangs before with some people I know, so I figured how different would it be.

So I reach the destination wearing a white shirt and a skirt, it was on the city outskirts. As soon as I entered they asked me to remove all clothing, I stripped to my underwear but they wanted me naked. they had wanted to see me naked for a while apparently and made me sit between them on the couch as they put their fingers inside of me and played around with my boobs and nipples.