Your step-sister has been secretly pining over you for a while now, and when on Christmas eve she discovers that your ultimate Christmas wish is to have a girlfriend with massive tits, so she can give you a tit-job, your step-sister begs Santa for help!! Though she doesn't really expect it to work, she's amazed to wake up on Christmas morning with absolutely ginormous knockers, and is thrilled that now finally she might be able to convince you to see her as something more than just your step-sister! After spending a good amount of time fondling and admiring her new boobs in the mirror, she starts to get super turned on imagining your reaction to seeing her new breasts, and she has to masturbate on her bed to calm herself down - dirty talking to herself about how her step-bro is sure to be obsessed with her tits now, and will probably even end up wanting to fuck her! She cums hard while fantasizing about you, then gets dressed up sexy ready to go wake you up and surprise you with your 'Christmas present'... When she walks into your room and opens her robe to present her new, massive boobs to you, you're understandably shocked and confused at first! It takes a while for her to convince you to let her use her boobs on you, since to start you're a bit put off by the fact that the giant boobs are attached to your step-sister of all people - but eventually your burning desire to experience a titjob for the first time wins out, and you nervously allow your step-sister to envelop your cock in her massive boobs! She enthusiastically bounces them up and down, breathlessly telling you how happy she is to be helping you like this, and insisting that you can use her amazing new boobs any time you like.... You enjoy watching her massive tits bouncing up and down on your cock for a while, but eventually have to admit that the visuals are kind of better than the actual sensation! Your step-sister quickly suggests that she can do something else that will feel even better - she suck your cock, instead! You're surprised that she's so keen, but she insists that she really, really wants to do it - in fact it can be your Christmas present to her, and if you've bought her anything else then you can just go ahead and return it! This seems like a great deal to you, so you tell your step-sister to go ahead, and you relax as she passionately sucks your cock until you explode and fill her mouth with spunk - afterwards insisting that you can use her boobs, or her mouth, or even fuck her anytime you want from now on - she's just so happy for this Christmas miracle, and wants to keep sharing the joy with you whenever you like! TAGS: british, english, redhead, ginger, tattoos, tattooed, boy girl, roleplay, dirty talk, posh accent, pov, comedy, funny, silly, christmas, holiday, taboo, step-brother, step-bro, step-sister, step-sis, titjob, tit job, tit-job, blowjob, bit tits, huge tits, fake tits, masturbation, tit fucking, titty fucking