Foreword
These stories are based in Australia and written in the idiom the characters would use.
Some issues in language variations I anticipated and built translations into my narrative. Others have caught me by surprise especially in their intensity. Generally, the intended meaning will be clear from the context if you don't cling too tightly to your usual usage.
Crutch/ Crotch has been a subject of much comment. Australians more commonly use 'crutch' and that meaning of the word is supported by the Macquarie Dictionary.
Story
Surprisingly, my memory of this episode is a little hazy.
So far as I recall Kate and I were lazing around in our bikinis at the holiday house, drinking a glass of wine while waiting for Greg to come home from work. My family were out, so we had the house to ourselves. With a little help from the Dutch courage I'd imbued, I told Kate I'd always wanted to watch and film Greg making love to another woman and I wanted that woman to be her. Confirming my long held suspicion that she'd been aching to bed him for much of the last four or five years, she just about jumped out of what little in the way of pants she was wearing in her agreement to participate.
So we agreed that when he got home, I'd arrange for Greg to strip, then I'd blindfold him and Kate would seduce him; my voice being there to convince Greg that it was me seducing him.
When Greg got home, I told him we were going down to the beach and to get dressed in his swimmers. Since I still had my bikini on, he had no reason to doubt me. Kate was out of sight. Watching him as he started to changed, when he reached the point where his work clothes were off I told him to stop as I had a better idea.
"Close your eyes"
"What are you up to?"
"That's for me to know and you to find out" Picking up and tying on the blindfold I'd already placed strategically within reach, I guided him out to the living room where there was more space and the camera had already been set up. Kate had now come out of hiding.
"Where have I heard that line before?"
As had been pre-arranged with Kate, I got him to lie down on the floor and then stepped back to the camera, allowing Kate to come forward. Kate knelt over him straddling his thighs. Greg felt her there and started to reach out for her. Grabbing his hands, she placed them firmly on the floor beside him; indicating by her actions that's where they should stay.
Greg was by this time already fully aroused; not just aroused, but the erect shaft was bobbing up and down in anticipation and letting out generous amounts of pre-cum. Kate leant over him and hooked the lower tie of her bikini top over his shaft, straddled the shaft with her breasts, pushed them more firmly against it with her hands and started pleasuring him by moving them up and down along it. While the breasts worked the top and sides of his shaft, the bikini string worked the lower portion.
Greg clearly enjoyed it. With moans and outbursts of "that's nice" he was content to lie back and take it in.
I could see Kate was using Greg's body to stimulate her nipples as they made themselves prominent within her bikini top. Kate periodically turned her body a little, brought the shaft within a triangle of her bikini top and moved it up and down across a breast.
I zoomed in on the area to watch Greg's shaft act as an enormous bulge pushing through the triangle before bursting out the side and then withdrawing within the top again – Kate pleasuring it between her engorged nipple and the material of the top. A line of dampness formed across the material marking where Greg had left a trail of slimy pre-cum as his shaft traversed the triangle. Eventually it was so wet with his body's output that as the shaft burst out from the material a bridge of the fluid was formed like mozzarella on a slice being pulled from a pizza; until the surface tension was overcome and the bridge broke.
The material of her bikini top started to be dislodged by the movement, her nipple appearing out the side. With each stroke his unyielding shaft could be seen crashing into the solid plinth of her nipple, the latter bending over to be buried in the generous flesh of her breast to make way for the former.
I could see Greg was starting to get to the point he might come. Through a series of hand singles, I made it clear to Kate I wanted to be the one who finally got Greg to deliver his seed.