You were thrown wildly around for a brief couple of seconds, then the bottle became much darker. Not pitch dark, there was still some light getting through, but not from above you; you could still stand up in the bottle but now the ceiling seemed lower...well, now there was a ceiling, whereas before all you could see was your godlike husband.
It took a second to realise what had happened. The bottle had been moved, so the opening was no longer above you but in front of you...and it was dark because, with the bottle held in place by mountainous thighs, your husband had covered it up with his bulge. His gigantic cock and balls were crammed against lycra biking shorts and your bottle was crammed right up against that. The warmth and smell emanating from it were unbelievable.
Then Paul started to cycle slowly and the temperature rose even further. "Enjoy," said Paul with a laugh in his voice as he cycled. You decided to do just that, approaching the opening of the bottle carefully. The movement of the thighs were causing the bottle to roll slightly from side to side and it was difficult to keep balance. Regardless, you proceeded until eventually you were right up against Paul's shorts. You reached out of the opening of the bottle and touched it, feeling the shape of his sweaty ballsack through his shorts. You pressed against it and your god of a husband moaned slightly. "Shit, was that you?" he muttered. "That was amazing, baby."
You couldn't believe that even at such a small, pathetic size you were able to turn on your husband. It redoubled your confidence and you threw yourself at the shorts with much more verve, the temperature rising to sauna-esque conditions as Paul began to bike faster and faster. The shorts grew more and more moist with sweat which you were more than happy to bathe in; it smelled and tasted as amazing as it always had, only now magnified 100 times. The combination of the increasing testosterone from the workout and the stimulation to his dick and balls started to have an effect, and you noticed the bulge growing, becoming more...intrusive, moving towards you as it pushed against the tight lycra. "Shit," Paul said again from above, and you were unsure if he was just aroused or if he was awkward at the concept of having a boner in the gym. Regardless, he didn't stop, even as the boner nudged the bottle, and you, backwards a little.