All us girls in the sorority house heard the president fucking her boyfriend, like we did almost every night. What we didn’t expect was when she threw her door open wide and we saw him there, naked and tied to her bed. She told us that it was our next pledge challenge: we had to fuck him each for thirty seconds, and whoever could make him cum would win. I had to do it even though I wasn’t on birth control and nobody was putting a condom on him. I tried not to move too much, but his dick felt so good in me that I could only grin when he started emptying his balls into my pussy and cheers went up from around us.