Keep going.

The third ball is problematic. You push down hard, getting it most of the way inside of her, but her sphincter continually forces it back out. After some minutes you manage to get the entire third ball inside of her, but have to push it in every now and then when it’s squeezed back out. It’s at this stage that can see a noticeable bulge in her taut stomach as the three massive globes fill up her insides. You decide that maybe fucking her ass with the balls might help to loosen her up, and you slowly pull out the balls one at a time, eliciting a deep gasp each time a ball pops out of her asshole. You shove them in and out again carefully over a dozen times, but each time you encounter significant resistance at the third ball.

You decide to stop at three inside her for the moment, applying gentle pressure down against her ass and jiggling and rotating the length to stimulate movement inside of her. She groans as you do so, her pussy twitching and leaking wetness all over. You think that maybe using coconut oil was the wrong choice, notwithstanding how sexy it is as a lube, and that maybe you need to be a bit more practical. You grab a plastic gallon jug of thick jelly-like medical-grade lube you'd purchased earlier in the week, just for emergency situations like this one.

You roll her over onto her back, spreading her legs wide apart, and grab the jug of lube and pour a handful of it into her palm. She clumsily wipes it all over the entrance to her ass, thick clumps of jelly smeared all in between her fingers, as you start lubing up the anal beads themselves. The first two balls go in easily enough, her ass now quickly accustomed to accepting objects of such a size, and the problematic third ball seems to go in without an issue. You grab hold of one of her knees and begin to push the fourth bead into her, and slowly but surely her ass takes it in.