This started some years ago when my daughter first started nursery at our local school. I used to work local to home, so I would drop my daughter off at nursery on my way to work and my wife would pick her up. When I dropped her off I would chat to the staff there, one of the staff was a girl in her early 20's with an 'ample figure', a lovely pair of large tits and a great sense of humour. For this, I will change her name to Cassie, in case anyone she knows reads this. Initially it would just be having a laugh, then when my daughter started in reception, the chat and laughter turned to flirting. In the summer holidays after my daughter had finished reception, the school had asked for parents to come and help tidy the school one weekend, as I have often helped out doing things for the school I went along, my wife stayed at home with my daughter. While there the headmistress said that they wanted to clean the outdoor tables and chair and some of the play equipment, I shot home and picked up my jet wash. The day was really hot, and I got down to cleaning the equipment. By about 3 most parents and teachers had wandered off as most of the work was done, I was nearly finished when Cassie came out and started to chat, she was wearing a pair of shorts, a white t-shirt and flip-flops, she started to play around (flicking water from the sponge and bucket she was holding), so I turned round and pointed the gun from the jet wash at her. She laughed and said 'you wouldn't dare!' All I said was 'you should never dare me to do something, I always take a dare' and pulled the trigger on the gun. She screamed as she got soaked. After a couple of seconds of drenching her I stopped, she was dripping, her t-shirt was showing a lot (it had turned almost transparent) - you could clearly see her bra and her nipples were clearly getting harder from the cold water. She said 'look at me, I'm drenched, now I'll have to change.' She disappeared and came back 5 minutes later wearing another t-shirt and the same shorts. I picked the gun up and pointed it at her. She laughed and said 'don't this is my last t-shirt' then she whispered, 'I've run out of undies, if you get me wet I've got nothing to change into'. I laughed and said 'maybe I should'. The headmistress came out and thanked me for my help and said she had to home and the care taker would be back around 5 to lock up. I said there was a bit more to clean and I'd wait for the care taker. When the headmistress had gone, Cassie said 'come on, I'll make you a drink, you deserve it for all your work' She disappeared indoors and reappeared a while later with two coffees. We sat on the grass and chatted, the chatting was more flirting than anything. Cassie said 'I'm still really wet', I jokingly said 'really, it's obviously not your clothes, but I could make you wetter'. She looked at me for a second then said 'you dirty bastard' and punched me. She lay back on the grass in the sun and said 'I feel really relaxed, I could lay her all day and sun bathe' as she spoke I could see her nipples were poking through the material. I just smirked and said 'not that relaxed from the look of it'. Then she said with a giggle 'fuck you, I didn't think they showed'. All I said was 'I do like to see a nice pair'. Cassie sat up, looked around and said 'well there's no one about.... and lifted her t-shirt up to expose a beautiful pair of 36DD's with a really hard pair of nipples. Then she covered up again and said 'now you've seen them'. We kept chatting (and flirting) for a little while, then I got up and cleared up the jet wash. She disappeared inside. Once I had finished I went in to say that I was going, I found her in the kitchen washing some cups. She didn't hear me approach, so I crept up behind her and grabbed her by the waist, she jumped and threw a cup of water over herself. I laughed, she said 'you fucker, you've made me wet again', I said 'I have a change of clothes in the car, I'll get you a t-shirt' and wandered off to get it. When I came back, I had to search for her, I eventually found her upstairs in the staff room. She was sitting in a chair with a towel around her shoulders. As I passed her the t-shirt she stood and dropped the towel to reveal her beautifully sized tits, all I said was 'wow', she looked at me and said 'you like them?', 'love them' I said. Cassie stepped forward and kissed me, I said 'won't someone see', she responded 'Jane has just left, there's no one else here' so I kissed her back. She kissed me deeply while I played with her nipples, which couldn't get any harder or larger. Then she said 'I'm really wet, feel' as she took hold of my hand and pushed it down the front of her shorts. My fingers found her shaved pussy, and slipped easily in between her lips, her juices covering my fingers as they slid in. She gasped as I pushed them into her. As I did my cock began to grow. My fingers started to work on her wet pussy and clit, Cassie began to pant as I did. After a few minutes, Cassie said 'god, I need your cock in me', as she hastily slipped my shorts down, my cock sprung up. She took hold of it and began to rub it. I tugged her shorts to the floor, she had taken her knickers off earlier when I had soaked her. Then I lifted her onto the table and guided my cock to her sodden pussy. Pushing in was really easy, but she was really tight. I'm not particularly large - about 6 or 7 inches erect and a couple of inches thick, but she was really tight. She gasped again as I pushed into her. Then began to pant as I slowly began to fuck her. As a few minutes we both came. A few minutes later we both dressed and went back downstairs, at 10 to 5 the caretaker arrived to lock up. I gave Cassie a lift home, when we reached her house she said 'my parents are out, do you want to come in for a coffee?' I did. In the house, she said 'I'll be a second' and disappeared upstairs, she told me to make a coffee. A few seconds later, Cassie appeared wearing nothing but a smile - we fucked again and I left. As I did, Cassie gave me her mobile number and said 'call me when you want to do that again'.