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" muttered Kalea again, and the she and Hiapo fell silent."At least we have lots of battery power," said Hiapo after several minutes. "Kara ran a power cord, we're fully charged." Yep. That's a plus." And we won't run out of oxygen," said Hiapo after several more minutes. "It's the CO2 build-up that would be fatal." Yeah." I remember reading some numbers about human respiration rates..." Ah, my dear husband! I knew I married you for some clever reason! What do you know?" A resting adult will produce about 450 liters of CO2 per day, much more if exercising." Hmm..." thought Kalea. "I estimate the volume of this well at a little less than 90 cubic meters, plus some air in the piece of the spiral we still have, minus all the volume of the equipment. How about we assume we raise the CO2 level 1% per day?" That's probably a very good estimate, assuming we don't move around much." What's the toxic level for CO2?" Four percent is considered dangerous, at five percent we'll probably see. He just sat there and let me do it. He was just happy for the physical contact on his cock. I shagged his cock. Shagged it real hard and fast, humping my hips back and too, bringing my arse back, sticking my arse right out then slamming forward really hard, shagging my dick over his dick, banging my balls against his balls. His hands were round my slim waist and every time I pulled back, his hands slid up the sides of my body up to my chest then when I pushed forward, his hands slid back down to my waist.“Oooh! Fuck! Fuck!”I shagged his dick harder and faster and my balls were proper swollen and tight. Me and my mate’s Dad, our hot cocks were slipping and sliding together, my cockjuice over his cock, his cockjuice over my cock. The underside of my big fat purple cockhead was sliding back and too over the full length of his cock then I felt the spunk welling up in my balls and surging up my cock and I warned my mate’s Dad.“I’m cuming! I’m cumming! I’m…oooooh!”I collapsed on top of my.
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