My wife asked me to piss on her and arranged the scenario. We did it on a warm, sunny afternoon in a corner of the garden that wasn't overlooked. The children were at their grandmother's. She wore a white t-shirt and a denim skirt, legs and feet bare, hair tied back in a ponytail. She made me get fully naked to do it. I'd drunk a couple of pints of water in readiness. No one could see us but we could hear the traffic as people went about their business and the noise of children playing in the next garden. She smiled to herself as if it gave extra spice to this dirty act while surrounded by innocence.The sun was warm on my naked skin but I didn't have a hard on which would have made it hard to piss. She told me to get her a cushion from the shed to kneel on. She did all the talking, explaining exactly what she wanted done. When everything was ready, she got down on the cushion with her face at the same height as my cock and her arms held out to the side so that her tits jutted nicely and told me to go. I got a stream going without difficulty and squeezed my cock slightly to concentrate the flow and make it last longer. She gasped when it first hit her face. I aimed it at her mouth and there was more of it than she could swallow so that it immediately overflowed down her chin and neck. I played it on her front so that her t-shirt became transparent and her bra and the dark circles of her nips emerged. I squeezed and released my cock harder to make my piss hit her in bursts. Up again to her face and down her clothes to splash her bare thighs. I was loving this and she was moaning. I could feel my bladder running empty now and moved forward to rub my prick and the last drops of my piss against her face and into her mouth and she sucked it in greedily. She was completely soaked. With a little grunt of pleasure, she let herself fall gently on her back to let the sun penetrate her drenched clothes and stayed like that for several minutes with her eyes shut. When she opened them again, she told me it had been even better than she anticipated and that she'd cummed in her underpants.