Last minute invite

You had been invited by your step sister to join her and her friends on their spring break trip to Mexico, which you literally thought it was some sort of practical joke but she had sent over your ticket with your name on it, which made you excitedly run to her room. She was wrapped in a towel and playing on her phone. She was happily watching videos as she kicked her legs up and down. Her legs were closed tightly to conceal her pussy but the bottom of her round ass was peeking out of her towel. She must have felt you staring as she asked, “Why are you loitering at my doorway, bro?”

“Sorry, Jen..I saw that you sent me a plane ticket and wanted to check that this isn’t some sort of elaborate prank…” you say timidly as you expect her group of friends to jump out and heckle you out of the room.

“Uh yeah…of course it’s real, dumbass! One of gals canceled so I figured you might want a free trip. I mean if you don’t I can just…”

“Wait please don’t! I’ll get packed right away,” you say as you sprint out the room and hear her chuckling at your childish reaction. You begin to throw in everything from shorts, bathing suits, tank tops, boxers and all of the various toiletries. You quickly get ready for bed as the flight will be an early one but you still can’t believe you are going on a trip with 7 college age girls and as the only guy in the group. This was any 19 year guys dream even if none of them were actually interested in you and you would get to see them in their itty bitty bikinis. You giggled at the thought of their bikinis and tried to get to sleep before the big day.