My roommate and I went on a road trip a few weeks back. We were excited to go and were travelling with his girlfriend Nikki and her friend Sara. I was ready to go because Nikki is a hot blonde with nice tits, 34b, and her friend is a brunette with perfect c cups. Sara is about 5'3 and 110lbs, she is very in shape and hot.
Anyway we were going to a concert out of town and we had a room set up at a motel. We picked up the girls who were both dressed in jean skirts and tank tops. I immediately noticed Sara had on a red satin bra. She sat in the back with me and during the trip we all talked about everything from classes to the concert. I was wearing sunglasses and was just staring out of the corner of my eye at Sara's tits. They looked so nice and firm with the bra wrapped around them.
Once at the hotel we checked in and everyone said they were hungry. I was not real hungry and said I would be happy to carry the bags to the room. They all agreed and left. I carried the bags up to the room and started to get excited thinking about Sara and how she looked in the car. I was wondering what kind of panties, if any, she had on under her skirt. I put the bags down and decided I had some time, so I unzipped Sara's bag. I saw some t-shirts and shorts on top and moved them aside. Underneath I found a pair of purple satin bikini panties, size five, and a purple bra. I felt myself getting hard and figured what the hell. I pulled the panties out and sat down on the couch. I unzipped my jeans and pulled out my now half hard cock. I slowly wrapped Sara's panties around my cock and started to pump up and down. With each stroke I was getting harder. I pulled my jeans down and was sitting on the couch with the panties, jacking for all it was worth.
It had only been about ten minutes since they all left and I was really into this. As I sat and masturbated all I thought of was Sara. Just then the door opened and there was Nikki. I jumped up to cover myself, but Sara's bag was open with her bra out and there I was sitting on the couch with a boner and panties wrapped around it. Nikki just gasped and said I was going to check and see if you wanted anything, but I guess you already found what you wanted. Nikki then closed the door and said 'Well you are already going so just finish.' I was so embarrased and tried to pull up my jeans. Nikki said 'Do it or I will tell the others.' I started to stroke again and she just sat on the bed and watched. As I was pumping Nikki started saying 'Oh yea, you little panty pumper, jack it good.'
Nikki said she wanted to see me cum. I was stroking really fast now and felt my balls tighten. Nikki said 'I always thought my bag looked different when I stayed at your apartment.' She said that she thought I was looking through her panties and bras. As she was talking I shot a wad onto my legs. I did not want to cum in the panties as I would definately get caught. Nikki said she would keep it our secret and we put away Sara's things and walked out to the car.
Later that night we were looking at t-shirts and Nikki looked at me and said 'Hey Nick, here is a purple one, you like purple don't you!' Sara looked at me and I tried not to blush. The rest of the trip Nikki kept making references to the incident. On the way home she actually asked if Sara had ever caught any guys beating their meat. Sara said no, and Nikki just laughed while looking at me. Nikki replied that she had caught a few and thought it was funny, seeing a guy with his cock in his hand and being totally embarrassed. I do not know if she ever told Sara, but it was a great jack session.