This true story from a couple of years ago was the beginning of a new chapter into my girlfriends (lexi) and my (Nick) relationship, or at least sexual relationship. As this was the first time I shared my girlfriend but not the last. At the time we were both 18 and in a normal late teen relationship, which had been going strong for many yeas. We were both slim and attractive students, Lexi was a size 8/10 with perky tender breasts. She had long brown hair that framed her beautiful face and bright green eyes. Her stomach was flat and toned leading down to her shaven tight pussy and long slender legs. We had never explored much sexually, no more then an average couple would have, till that fateful night that changed everything! The night started fairly standard, just having a few mates round and my girlfriend trying to keep out the way of the ladish behaviour. As the evening went on every one slowly left until it was just me and one of my closer friends Lawrence. We had had a couple of beers over the night and Lexi soon joined us with a bottle of wine. We were all inappropriate people and up for a good laugh, not to mention by this point quite tipsy. The topic soon came to sex and Lawrence asked lexi if she had anything on under the large baggy top she was solely warring. She replied with a cheeky ‘wouldn’t you like to know’. Although that conversation went no farther the two of them could not stop staring at each other from then on. And who could blame him as her legs stretched out from her top, which barely covered her tiny panties. We got talking about fantasies and what got us two guys going which lexi seemed to really enjoy. Lawrence became very interested into what lexi fantasised about and at first she was to embarrassed to say. I already knew every thing she liked but I wanted her to say it in front of Lawrence. Finally with my pestering she admitted she was curious about girls and that she sometimes watches lesbian Porn. This really excited Lawrence and weirdly me as well as I could tell he wanted her so much. He grabbed my laptop and pulled up the Internet going strait to a free video porn site searched for lesbian. He showed her a couple of videos, which she pretended to be embarrassed about watching but you could see her eyes widen and I could see it was turning her on and watching her was turning both me and Lawrence on. After a few more minuets of this the Internet went down much to every ones frustration and it was not long till Lawrence was asking were I kept my porn. I told him I never bothered saving it but before he could get disappointed lexi piped up with something I never thought she would. ‘What about the pictures of me?’. Lawrence I think was to excited to say anything and instead of telling him to fuck of I showed him were I saved the pictures… There were 30ish pictures of lexi slowly taking off her unaware and slowly revealing her naked body. Lawrence could not stop staring at them and lexi was slowly getting closer to him on my bed until she had her arms rapped around his shoulder and neck. She whispered in his ear something I could not hear then looked back at me and bit her lip. Lawrence finally turned his attention away from the laptop and asked if he could fuck lexi. Every part of my body told me to say no and stop what was happening… But I didn’t I just said, ok. Lexi pulled back the covers around her to reveal Lawrence’s hand between her legs. This whole time he had had hand inside her panties feeling her wet pussy. They did not waist any time from then on and started by passionately kissing each other deeply. I felt so weird but also the most turned on I had ever been! Within seconds he had removed her top revealing her slim body and sexy red thong and bra. Her bra came of with his top and she dived into undoing his jeans wile he slowly sucked on her nipples. She slipped of her thong slowly and teased him not allowing him to see her pussy but finally gave in kneeling up on the bed showing off her slim body. Wile coursing her own body she watched as he removed his boxers before gently leaning over, still kneeling on the bed, and started to touch his cock. She kissed it up and down, then as it got bigger held it in one hand wile licking it up on down. Her other hand travelled down her body between her legs until she was playing with herself. Making sure I could see every second of it she put his cock in her mouth for the first time taking as much of it as she could. She slowly started lift her head up and down, then started to get faster and faster using her hand as well. His hand had now replaced hers on her pussy and she was starting to moan with pleasure. I don’t think ether of them could take it any more and he pushed her on her back climbing on top. They briefly kissed before looking each other in the eyes as he rolled his hips and pushed his cock deep inside her. They seemed to fuck like this for ages, slowly rolling his hips and pushing his cock as deep as it would go wile franticly kissing each and calling each others name. They got faster and faster until she was screaming with pleasure and cuming with another guys cock inside her. I could just about see his wet cock, wet from my girlfriend’s pussy, being pushed deep inside her. Lexi caught me staring at this and rolled him over climbing on top backwards, so I could see every thing. She grabbed he cock slowly lowing herself on to it until she had every inch inside her and was sitting on her knees. This time they wasted no time in fucking fast and I could see as my friend’s cock went inside my girlfriend’s pussy. She was more wet then I had ever seen her which was making his cock soaking. He told her he wanted to cum so she climbed off of his massive cock and laid on her back with her legs open so he could again fuck her. After sliding into my girlfriend’s pussy he fucked her harder then he had before. She screamed out his name and told him that she was going to fuck him again and she wanted him so bad. It was not much longer till he grabbed her close and wile kissing her came deep inside her pussy. They both laid down next to each other kissing and hugging, her legs open and her shaven pussy dripping with his cum. Both sweaty and out of breath they laid kissing and talking until we all fell asleep in the same bed but only after I had had go with her. The next morning I was woken up by them both at it again. She was sitting on top of him lifting herself up and down on his cock. They were trying to be quite and not wake but fuck in secret. It was not long till he came inside her again and they went back to sleep kissing each other and saying that they were going to have to do it again some time. And believe me they did… many a time.