She found out rather soon that her first 'customer' wanted anal. Rather, she could offer anal or oral, anyway... and that her buttplug was connected to some payment system, as he pulled out his phone and pressed few buttons, followed by loud beep that made her buttplug suddenly deflate. He wasted no time pulling it out of her, making her squeak, and then told to step onto the nearby crate against the brick wall so he could mount her properly... and as she hesitated, she was rewarded with firm slap onto her buttcheeks. She had no choice but to obey, clambering onto the crate with small difficulty. He wasted no time, pushing his large horsecock, luckily still partially soft, into her slightly gaping anus. Ninabun's eyes widened, and she was glad that her rear was still somewhat lubricated, probaly either from the lube on the buttplug, or remains of all the semen in her rectum, that the horsemorph's dick slipped in without too much difficulty. And rather deep, she noted. How far was she stretching, she wondered? He started hardening up soon, stretching her inside further and deeper, but not painfully so... but still to her limits, as he kept humping her tailhole, remarking how tight she was. She's not sure how long this took, but when he finally came, filling her to brim with his seed, she felt a tiny orgasm as well, her folds fluttering against the spiky dildo locked inside her. The horse guy still didn't pull out though, despite some of his seed leaking out a bit from her stretched ring... but instead he was fiddling with his phone. Ninabun almost asked what he was doing when she heard another beeping noise. Her eyes widened when he told he bought her for full night until morning, and begun to hump her again with renewed vigor... What she didn't see was the review he left on about her on certain brothel's website... "4/5 stars. Tight ass. Needs more cock sleeve training."