Your little sister's boyfriend is on a camping trip this weekend, and like the kind big bro you are, you decide to let her stay at your place so you can take care of her. She calls you in, telling you she has a very strong, very weird craving, and not one that calls for a grocery run! Your little sis admits her pregnancy craving is... cum?? Without her bf around, she has no idea what to do! She thinks talking about it may make her feel better, so you listen to her desperately describe her need for cum, and once again being the kind big bro you are, tell her she can have your cum. She tells you that would be incredibly taboo and fucked up... then she accepts you offer! Once your little sis is sucking your dick her primal body takes over and she swallows and drools your cum all over. However, her cravings aren't satisfied, they're intensified! When you don't seem opposed to the idea of giving her more cum by fucking her, your sis starts to put the pieces together and realizes you're not only being a kind big bro, but you're also indulging in private taboo desires you've been harboring. You may be a perv, but that doesn't bother your pregnant sister one bit because it means she gets more cum! As you're about to fuck her, she notes that she's had the most horny pregnancy experience and it's likely due to how she became pregnant. She originally didn't tell you cause it would've been weird, but when you're about to stick your dick in your sis nothing is weird. She tells you how she became pregnant through her bf introducing her to his breeding kink, and the look on your face as you listen betrays you have a breeding kink too. Now it all makes sense, you've been lusting after your pregnant sister because you fantasize about breeding her, and your sis actually thinks that's hot?! The two of you fuck in missionary and she plays along with your fantasy, begging you to breed her and you fill her fertile pussy up with a huge creampie. As your cum flows out of her and she begins to play with your cum, your sis loses all sense of self and becomes a pure, taboo cumslut, rubbing your cum all over her milky tits, pregnant tummy -- AND she falls to her knees and sucks you dry, completely coating her body in your cum. Finally her cravings are gone... right?? ♥︎ ♡FEATURES♡ big brother x little sister taboo roleplay, family fantasy, pregnancy kink, breeding kink, impregnation, maiesiophilia, cum play, belly play, POV bj, missionary, bukakke, creampie, cum swallowing, dirty talk