This is a true story with names changed to protect the guilty. My girlfriend was 18 at the time, a slim size 8, small boobs, tight ass, nice legs, flat stomach with bleached blonde curly hair. We had been dating for a couple of months, but had not slept together at this point. In fact, she had not slept with anyone at this point, whereas i had plenty of experience and numerous conquests. I was, however, faithful to my girlfriend and had no desire to cheat on her. We had met when i was trying to hit on her best friend, who was a couple of years older than her and a year younger than me. Emma was the local hottie, tall, blonde and perfect in every way. She was very kind in avoiding my advances and pushed me in the direction of Hannah. We hit it off and became a couple a few months later, when i plucked up the courage to ask her out. I quickly fell in love with Hannah, her bubbly personality coupled with her slim figure and pretty face had me eating out of her hands and falling over myself to please her. I became very jealous of the time she would spend with Emma, but managed to keep it to myself, somehow. They were both very pretty and would dress very similar, short skirts, crop tops, very appealing to the opposite sex. They worked together in the evenings at the local diner and sometimes i would meet up with Hannah after work, or they would cruise the local area in Emma's car if i wasn't around. Just having fun and enjoying themselves. We had the ex boyfriends, ex girlfriends talk about a month into our relationship. Hannah had dated Rob since she was 18 and they had split about 6 months before we met. They had fooled around and he had got into her knickers and played with her pussy, but that was as far as they had ever gone. She had also let another lad play with her pussy in the aftermath of her break up, but had not gone any further. i had told her about a few of the girls i had slept with, not all of them as i didn't want to scare her off. Everything was perfect and life was good. A couple of months into our relationship, i picked her up from work and we drove to our secluded spot in the lanes, where we went most nights for some heavy petting before i dropped her home. She was on fire that night, grabbing my cock and pushing my hand onto her pussy, kissing me hard and coming seconds after i had put my fingers in her pussy. She then begged me to lick her pussy, a first for us, and had moved to allow herself to suck my cock at the same time. She quickly had a second orgasm and slowed the pace a bit, sitting up and wanking my cock instead of sucking it. We kissed and she looked me in the eyes and said i have something to tell you. My heart missed a beat as she slowly told me the following story as she continued to wank my cock. The night before, Hannah and Emma had driven around after work and got bored. Hannah suggested they went to Rob's house as he had the house to himself, Emma agreed and said they should tease him a bit, to show him what he was missing, since dumping Hannah for a local slut. They knocked the door and Rob answered wearing just his boxers. They went in and had a drink and then asked Rob if they could have a shower, as they had been working. He took them upstairs, got them some towels and showed them the bathroom. Emma went first while Hannah and Rob sat in the bedroom, talking. Emma finished showering and went in the bedroom with a towel covering her top half and her thong on the bottom half. Rob's cock was hard and had escaped the confines of his boxers, making the girls giggle. Hannah reached over and stroked his erection a few times before standing up and saying my turn, and went to the bathroom for a shower. When she had finished, she went into the bedroom wearing a towel around her bottom half and her bra on the top half. Rob and Emma were lying on the bed, Rob naked, his cock rock hard. Emma was now lying on the towel, her tits exposed and still with her thong on. They were kissing and playing with each other. Hannah admitted at this point that the sight of Emma kissing Rob made her extremely jealous and horny all at the same time. to be continued