The Bigger Fish
The tip flexed in his belly, pumping seed with every heartbeat, as the tiger forced his musky crotch against the wolf's lips.
Jayda Ripley in... Personal(ity) Training
"see how... he's flexing... his whole... oooohhhhfff... body? that's the secret to fitness, right... hah... nffff... right... oh, yeah... right there!"
Malapar and Friend: Part 2
His tight ass clenched and flexed, making mal all the more anxious to get inside.
Giddyup
It felt as if the boy's asshole was pulling the cock in further, flexing as if to swallow it, and soon the steed began spraying pre deep inside the boy.
Malapar and Friends
He reached down and grabbed the base of his cock with both hands, watching his triceps flex and bulge.
Atari's Gym: Keep It in the Lockers
The massive shaft shrunk with each flexing blast of seed, though it retained its overall proportions.
Darwen in... The Slippery Otter Inn
The huge orca stalk flexed, shuddering, rigid and blue-balled to an impressive degree.
Big Bro
Look what you can see when i flex," kai boasted. zharin watched as kai's taint flexed, his balls churning as he flexed his dick inside that warm pussy. “oh fuck, i could see it move," emma moaned. zharin didn't know if he was in heaven or hell.
Annalee and the Wrestler
Hir aching cock stuck out of the waistband, bobbing under hir breasts and shirt, flexing out against the fabric.
Pantheon
With nothing but bare paws and seething, flexing muscles. no hard hats. no work gloves. thor gestured for me to take a little inspection tour.
Fertile Soil - Chapter 12
Clover's gray-fuzzed butt was clenching and flexing repeatedly against the platform as it took bigger, heavier shots of the gooey stuff.
Cream Donations
His cock flexed, tip fleshily snapping at nothing.