We were on our way back from a trip. It was dark, it was around 9 pm. I was sitting by the window and beside me was my girlfriend. Dead silence ruled the bus. Everybody was very tired. She was lying on me and I was groping her ass. I realized that I was getting hard and she noticed it. She looked up to me with a look full of lust, her hand slowly moving up my leg to the bulge that was growing inside my pants. She grabbed my cock trough my pants and whispered in my ear: »mm you are hard. How come? « »It's your ass. You know how much I love it. «, I whispered back and groped her ass cheek harder. »Can I see it? « she asked while stroking my cock trough my pants. I looked around and everybody was still awake but I couldn't handle it. I looked back at her. She still had that lustful look. I kissed her and whispered »How bad do you want it? « »Very bad. « she whispered and grabbed my cock even harder. I nodded and she immediately unbuckled my belt, unzipped my pants and started to jerk me off. I covered her hand with my jacket just in case anyone would look our way. She played around with the tip of my cock making me release a silent moan. She kissed me and whispered in my ear not letting go of my hard cock »Can I lick it? «. I was surprised she went this far but having her suck my cock in a bus full of her classmates was just too much. She kept stroking my cock, her head was filled with lust and her eyes showed it all. »Are you sure? «, I asked. She just nodded and licked the tip of my cock. I felt the warmth of her tongue. She wrapped her lips around my cock and started to move her head up and down on my cock. She used her tongue to lick the tip of my cock. She started sucking harder. Her hand holding my hard cock in place and jerking it while her tongue licked every bit of my hard cock. I was getting close and I whispered “I am getting close.” But she didn’t seem to care, she kept sucking hardening her grip around my cock. I felt it. I was going to cum any second. I whispered “Here it comes.” And she put her head all the way down on my cock while I came in her mouth. I looked up. Nobody saw anything. I looked back at her. She had a big smile on her face with cum coming out of her mouth. She was still holding on to my hard cock slowly moving her hand up and down. She swallowed the cum in her mouth and licked my cock clean. She leaned back on me and fell asleep.