"I'd better get back, my mum will wonder where I am!" says Ben. Sarah catches his arm as he turns to leave, "I'll walk you out" she says and continues to the door with him. "It was really lovely to meet you today, thank you so much for your help, and if there's any favours I can ever do in return you only have to ask". Ben blushes and tries to get the words 'no problem' out before he hurries back to his house.
He runs up to his bedroom and closes the door firmly behind him. There was a glint in her eye when she said that, he swears, 'any favours' she couldn't have meant? No. Definitely not. Ben couldn't deny the effect Sarah was having on him. He'd been awkwardly hiding his erection since she grabbed his arm in the kitchen. He relaxed back on his bed, unzipping his shorts. Freeing his previous constrained erection and stroking himself, closing his eyes and bringing Sarah to mind, trying to picture what she was hiding under her clothes. He could see from the way her sweater clung to her form that she had large breasts, a small waist and curvy hips.
He imagined placing his hands on her hips to pull her towards him and pressing her against his hard cock. The thing with girls his age is they didn't understand yet how to please a man, he just knew looking at Sarah that this was a woman who knew how to please her man. The second his imagination went to getting to her knees in front of him, he cums hard, groans and opens his eyes, looking for something to clean himself up with. What is he thinking? She's a married woman of what, about 25-30 with probably no interest in an 18 year old boy. At that moment his mum calls him down for dinner and he goes downstairs to join the rest of the family.
That evening he goes out to his computer room at the end of the garden in a summer house his parents built for him. He's playing and chatting to friends online when he notices something moving in the corner of his eye. He realises Sarah has the light on in her bedroom and he can see straight into her room. She's pottering around tidying up, moving things around and he watches her. She moves with such grace, completely unaware of how lovely she is. Her husband is not right for her at all and Ben wonders how on earth they ended up together. He sees the husband still being useless and getting in her way. Suddenly a thought occurs to Ben. If he was in that room with her right at that moment she'd be pinned to the wall by her neck, his other hand tearing off her panties... Ben snaps back to reality. Where did that come from? He has never done anything like that! He turns his attention back to the computer and tries not to let his mind wander.
The light is fading outside and he is constantly distracted by the activity in their nextdoor neighbour's bedroom. He notices Sarah is stood on something by the window, she must be putting up the curtains. She's stretching above her head, and she's changed into a nightdress and has clearly taken off her bra. Ben can't tear his gaze away as she moves and stretches, the nightdress not doing much to hide her assets. Ben checks down the garden to make sure there's no activity in his own house and that he's enough in the shadows in the summer house if Sarah was to cast her eyes down. Again he unzips his shorts and takes out his throbbing cock as he sees her bent over the window sill.
'Fuck, the things I would do to her if I was behind her right now'. He sees her breasts hanging down freely and he is desperate to touch them, to pinch her nipples between his fingers. He begins to stroke his cock, feeling the climax building, the tension in his balls. He closes his eyes and his imagination takes him into that bedroom, standing behind her, lifting her nightdress and sliding his cock between her buttocks. Again, he cums quickly. He's been trying to hold off lately, build it for longer, but the image of her is making it impossible today. He opens his eyes and she's closed the curtains. He soon feels sleepy and decides to head to bed. It's been quite a day after all...