You go to the generator room

Once the breakfast was over, Zoe and Jane started cleaning up the table.

"How about I go and check the generator room to see how much fuel we have," you asked.

"That's a good idea, me and the girls will handle the storage room," said Zoe.

Your dick was still erect, so you were waiting for the best opportunity to stand up and rush towards the corridor. You got the perfect opportunity when Zoe and Jane shifted their attention to dishes in the sink, you immediately turned around, making sure that the only thing the girls could see was your back.

You rushed into the generator room at the end of the corridor. You closed the door behind you and sprinted behind the generator. With your left hand, you slid down the leggings and your thong until your fully erect dick popped out. You closed your eyes and grabbed your cock with your right hand, and then started to rub it violently.