She hadn’t been able to let her boyfriend fuck her ass without passing out within the first five minutes, so she signed up for a training program right away. She spent four nights a week with a trainer stretching her tight asshole to her boyfriend’s exacting specifications. He wanted to make sure she was still tight enough that it would feel like his cock was ripping her in two, but not so tight that she’d pass out from the pain. She just hoped her training would be complete before her boyfriend dumped her, but figured her next boyfriend would want to fuck her ass too, so it was a good opportunity anyway.