Was it the cool spray of the water making her nipples ache? She couldn't really tell. Just that they'd been so hard for so long, she could feel them acutely. Intensely. They were jutting out at him, begging for his attention. The shirt heavy and wet as the stiff digits pulled her breasts out away from her body. Oh, when he takes them in his mouth and toys with them! She could scream with joy.
It wasn't as though she hadn't had her hands tied above her head before. It was one of the experiences that came with dating him. She'd been tied to a beam in a barn, tied to a ceiling, a hook on a door in a hotel, a tree. Thinking about it was an interesting string of memories. She almost giggled thinking of her hands tied to bedposts over half of Europe.
You'd think it might get old and worn, but somehow it never does. Today it was hands above her head, holding her up and at the edge of the spray from a waterfall. The water was warm, but the spray where the falling precipitation pounded into mist against the rocks, slightly cool.
She felt a stab of need drive into her groin and decided the cold wasn't the reason her nipples ached so very much. It was need. God! She needed to cum. More than that, she needed his cock plunging into her.
The feel of the water beating on the rock felt to her like a rock hard pole ramming into her. She felt the throb and pulse as though it were live and inside her swollen pussy lips.
It was amazing that she could feel the thrumming in the air. That it made her practically feel the pounding inside her, but the spray and the way her clothing was soaked through kept her from feeling the usual streaming of moisture pouring out of her body. She was aroused and more without the response she was so used to.
Just as with her nipples, it was more of a blatant arousal. Nearly a dry, painful one in its constancy. Like being fucked without being pushed to the edge. She wasn't used to this feeling with him. Normally, he would drive her to orgasm repeatedly. Either pulling back just as she began her spasming, quaking reaction to his ministrations, or allowing her to cum again and again. He would often use the denial of her orgasm as a build up and a strengthening to her repeated climaxes.