I visited a local spa with my other half a few months ago, it consisted of various pools and outdoor hot tubs. I have had a few naughty moments there, once which really sticks in my mind was when I fingered her in public there and had an unexpected surprise myself leading to two orgasms!
We're relaxing in the large indue bubble pool - it's about 40 x 30 ft - so big enough for plenty of people with still plenty of space. I had my back to the edge of the pool, looking inwards whilst she come beside me but looking out towards the windows. It just so happened my arms were outstretched as she approached so when her tummy moved up to the wall, her crotch pressed right against my hand. An accidental brush up quickly triggered my dirty mind and immediately cupped her mound with my fingers. We exchanged glances and she kind of glared at me but did not push me away.
I pressed her some more, whilst looking around pretending everything was normal, and began kneading her clit with my finger tips through the fabric of her swimming costume. She opened her legs a little and invited me to touch her more. My poor cock was already hard and aching, luckily the bubbles were hiding my state. I pressed her some more, tracing the folds of her slit, up and down and feeling the familiar nub or her protruding clit. I sensed her breathing changing as I teased her arousal. I toyed and played with her some more as her eye closed. She rocked gently against my fingers, digging into my finger tips when she announced she wanted to cum, but not here as it was too crowded.
We agreed to go outside and find a hot tub, I made her leave first as I had to get my hard cock to go down, and I would meet her in 5 minutes. I watched her lovely round bottom as she ascended the steps and made her way to the ladies before proceeding outside. I closed my eyes with my hard cock pressed up against the wall when I felt a tug on my shorts... a hand had just untied my bow and pushed inside and grabbed onto my hard cock! I looked to my right and my eyes met with a middle-aged lady smiling at me, she said she saw me pleasuring my partner and suggested she should help me relieve my tension if I did the same to her.
So with her to my right, I swivelled to face her as my left hand found her warm mound and I very quickly began to masturbate her as she wanked me off under my shorts. Luckily the bubbles hid our activity. I slid my fingers under her gusset and we broth groaned as I found her clit, I penetrated her quickly as she bit down on my fingers. I told her I had to be quick as my partner was waiting for me, at which point I felt her tug harder on my cock. 'Cum for me then' she insisted as her legs opened more to let me finger deeply. Just then she spasmed in my hands and her legs shook... she hurried her lips in my neck and pulled the cum out of me... and grinned as she felt my cock writhe in her hand.