Let me tell you about ourselves, at the time this happened we were in our early twenties; I'd had may sexual partners before I met Sarah, but on meeting her I'd never considered sex with anyone else. Sarah had only had one other partner, but she had confessed on our second night together she had only had full sex twice, then he cheated on her and that had ended their relationship. Sarah was a 5'2 tall and dark hair and electric blue eyes, 34B breast and upon my insistence was now fully shaved. I'm 5'10 and at that time a keen swimmer so I was very trim and lean.
We were invited to join our friends at her family's holiday flat in the south of England for a week's holiday. I'd gone to school with Clark and we had remained friends since. By coincidence he'd met Anna about the same time as I'd met Sarah and we double dated a number of times but never had we holidayed together, so this was going to be a first. Clark was always reserved but Anna was very outspoken and wore the trousers in their relationship. I'd noticed on our nights out that it was always Anna who used the sexual innuendos and directed the talk to sex. Once the holiday was suggested we set a date for late June and we joined them at the flat. The flat was a large two bed arrangement with a limited sea view. But all the rooms were spacious and both rooms had en suites.
On the first night and after a good meal at a local pub, we went home to carry on drinking. After about an hour we were all very drunk and for a joke (or maybe it was well planned) Clark brought out a copy of a "Sex 365: A Position for Every Day" book we all laughed and were joking at the various positions and bragging about the ones we had completed.
The chat and mood was getting very brazen and everyone was asking the other to explain more. Well the night went on with more drink and all of us were getting intimate with our partners. Well eventually the passion took over and Anna whipped out Clarks tool and set to work on a blow job. I could tell she was well practiced; Clarks cock looked to be about 7" long the same as mine but only half as wide as mine.
Sarah is not an exhibitionist but I coaxed her to copy and eventually both couples were having sex in the same room. Although the sex was conventional we had removed most of our clothes and I could see Anna's larger tits. Afterwards we all were comfortable, and sat there naked in each others company. Anna was taller than Sarah at about 5"5 tall she had ample tits a pierced naval and a very hairy un-kept bush, other than the hair I had no complaints. Clark was slightly hairier than me and as I said this cock was about the same size as mine erect but flaccid it was slightly longer than mine. We sat there and in our post sex glow had more drinks and relayed our sex stories. As we carried on the drinking the conversation was much more open this got both of us men aroused with rapidly growing cocks.
No one could wait any longer Sarah was content to gently stroke my cock. Then out of the blue Anna came to Sarah and touched her tits and tried to kiss her. I think Sarah was surprised because it didn't go well. She got up and left the room. As a couple we hadn't really discussed about sex with another person at that time so I think Sarah was shocked. Anna had left the room as well and Clark followed her. Sadly that ended the night.
Later in our room we talked about what had happened, and told me she had never thought about kissing another girl, yet alone sex with her or swapping. We agreed neither of us was opposed although Sarah didn't want to watch me having sex with another woman, but she did say if we swapped it would be at the same time, she also added that she was surprised by Anna's advance and remarked on her un-kept pussy.
Day 2
The next morning Anna apologized and agreed it was nothing, Anna and Sarah talked alone for a long time.
That night it was raining and we stayed in for a takeaway, and started early on the drinking afterwards we played strip poker I lost and Clark soon followed, then out came the book and we randomly picked pages and recreated the position but other than touching no penetration.
This worked well until we realized there were 200 pages in the book. The crunch time came as the later pages were dedicated to group and same sex. Clark got to the first same sex and he laughed as the two girls were shown gently massaging each other's pussy, Sarah seemed quite happy since their conversation. So they re-enacted the page, then they stopped looked at us and said it was now our turn, it took a while for the penny to drop but when it did we both looked at each other and just like when you need a painful injection we tensed, but knew it had to be done. I reached out and took Clark's tool, the first one I'd touched. Clark then hesitantly joined in and gave me a few strokes, we didn't continue this for long, both girls were watching.
Clark then stood and left to the kitchen, I was not sure if he was embarrassed or shocked. Sarah and Anna came over to me and they both kissed me (a reward for being brave). Clark returned and stood in front of us, Anna went forward and grabbed his tool for a blow Job but he shot his load on first contact. Anna had spunk all over her face and tits, Clark was not happy. Sarah said she'd never seen another man come, to which I added neither had I.
Anna then asked me to come for them so I stood up to proudly do my chore when Anna asked Sarah if she could wank me, so off she went and in a jiffy my load hit her face.
Silence and time for the bathroom, coming out Sarah was there and I asked if she wanted to take it further with Anna and she drunkenly smiled. I didn't realize what it meant for me. We returned to the lounge, Anna and Clark was well into each other, so we got it on. Next thing Clark was standing next to us and Anna hands are in our action.
Then Sarah and Anna kissed full on Anna then lifted my hands from her boobs and placed it on Clarks cock he wasn't upset. I gently rubbed him but he pushed is cock to my face and I had to take it. I chocked a lot but Sarah said "take it slowly". I carried on sucking him for a while then stopped and looked up to see Sarah was eating out Anna. I returned to the task and gave him a blow job until all he wanted was to fuck.
Anna moved on top to a 69 position so Sarah had her head between Anna's legs and was looking up as Clarks cock entered her. I was left out so I watched. I could see his cock pounding in and out. Sarah tentatively lifted her head to lick Anna's clit. Clarks pace quickened and Sarah got more adventurous and was now licking Clarks balls. Well it only took a minute until he shot his 2nd load into Anna.
What I was unaware of was Anna was giving Sarah a damn good licking and she was so turned on. As Clark pulled out the semen leaked out and onto Sarah's face. Anna spun round to kiss and lick her face. But Sarah needed filling she reversed the 69 so Anna was underneath but in short while she left Anna fully exposed and turned her arse to where I was sitting and lowered onto my lap, my cock entered her very easily. Sarah started grinding into me, the pressure was unbearable and I came into her after a few minutes. Sarah also came on my cock and collapsed.
We all sat exhausted for a while then Sarah decided she needed a shower, leaving the three of us in the room. We chatted some more and Anna commented that I was still erect but Clark was limp. I jokingly said perhaps he needs pumping up. She gave him a couple of quick tugs but no life. She looked at me and then knelt in front of me to take my pussy juice coated cock into her mouth and she started sucking and licking my cock it was lovely but I knew I couldn't come again so quickly it was going to take some effort from Anna to raise any juice from me. After a short while I looked up and Clark was gently stroking his cock it was now semi erect, I let Anna continue as Clark was enjoying the show, then once he was erect he came up behind her and started fucking her. Clark stopped and pulled out of her she looked at me, but I remembered my agreement with Sarah and I said reluctantly I couldn't but urged them to continue. Anna rolled over onto her back and I watched Clark screw her, I need more sex so I left and Joined Sarah for my satisfaction and hers.
Towards the end of our session Anna came into the room and looked at us Sarah was a little surprised but didn't stop. Anna then asked if tomorrow they could swap men. Sarah looked surprised at her openness I was so turned on I shot my load there and then, Sarah said she would think about it but I think Ziggy would like that referring to my sudden explosion into her.
Day 3
The next morning I was up making the first cup of tea when Clark came into the kitchen. We talked about the nights before and laughed, then he asked me was Sarah always shaved, as he'd liked the look and since seeing her nude now wanted Anna to shave, I agreed a trim was required. He said that Anna wanted to have sex with me, which was clear from the night before I asked him how he felt about it, he said he didn't mind, so I told him about my agreement with Sarah and he said he liked that idea. He went on to tell me that Anna had once had a boyfriend who turned out to be gay and that it was her idea that he should try it as she wanted to see two men together. I said I enjoyed our encounter and I hoped he didn't have any regrets.
I returned to our room where Sarah was still asleep, I gently massaged her until she woke and we had that lazy relaxed morning sex that lasts all day and keeps returning to your thoughts throughout the day. Afterwards I told her about my conversation with Clark and made her promise to get Anna trimmed or even better shaved. She said she would try.
At breakfast we agreed that today would be a girls day out, so they went off to the local town.