Jade Bleu 
Alien Inside Her #3: Adriana [EPUB ebook] 

Chosen to be the prize for a multi-limbed alien! 
No sooner had Adriana seen the news that the alien visitors were coming planet side for a rite of passage event than she’d been taken to an arena and offered up as the grand prize. The winner took her right then and there, probing every part of her with its slithering appendages and large meat, giving her a rough reward both front door and back.
An erotic alien takeover story featuring a hungry, multi-limbed alien, and DP with surprise anal.