After being dumped by her much older boyfriend, your step-niece shows up at your door and begs you to rent your guest room to her. You're not sure why she's chosen you out of everyone in the family, but you've been lonely since your divorce and decide to let her stay. After getting settled in for the night, she corners you in the hall and asks you to tuck her into bed. At first you assume she's joking, but she begins to pout and explains that her ex boyfriend tucked her in every night and she's anxious about going to bed without his help. Hearing about her ex makes you extremely uncomfortable, but you agree to help her into bed and give her a goodnight kiss on her forehead. Before you have a chance to leave, she confesses to having omitted the most important part of the evening ritual. She's going to need a real kiss... You know you shouldn't, but you find it impossible to say no to her. You hate that kissing her makes your cock so hard, but instead of pulling away you lean in for more. She feels your erection against her and begins to wriggle out of her pajama pants. You're completely helpless as she grinds her naked body into you and begs you for sex. She guides you into her wet little pussy and pulls you close as she reminds you you're her new step-Daddy and there's no going back now. You attempt to pull out when you feel your orgasm mounting, but she'll have none of it. When she senses you losing momentum, she turns around and offers herself from behind. The sight of her bent over for you is so tempting you can't help but give her exactly what she wants. It takes enormous willpower not to cum, especially when she begins to climax with you inside her. You pull out again, but she's not finished with you yet. Determined to bring you across the finish line, she rolls back over and and positions your hands around her throat. While being rough with her makes you feel enormously guilty, it's not exactly unpleasant. You feel yourself close to orgasm again and manage to stop yourself before disaster strikes. Finally giving up the idea of a creampie, she suggests you finish on her face instead. Watching her slobber on your cock and beg you for a facial is enough to set you over the edge. After gleefully showing off her sticky face and tits, your step-niece announces it's time for you to give her a bath and then tuck her back in bed. *VIEWER DISCRETION ADVISED*. (Typos likely. It's now 8 am and I just stayed up all night having sex with my make believe uncle)