**If you're a fan of my taboo content, check out my brother/sister roleplay stuff at onlyfans.com/taboofiona !**(This was originally filmed as a custom video and is a sequel to Your Wife's Sister Wants To Fuck) Since you and Fiona came to an arrangement that you would pay her rent in exchange for sex, you've been enjoying fucking her every day in front of your wife, Fiona's older sister. One day you come home from work to find Fiona greeting you with a mischevious look in her eye - she welcomes you and informs you that she has prepared a surprise and it's waiting for you in the living room... You follow Fiona into the room and see your wife bound and gagged on the ottoman, naked and helpless. Fiona doesn't immediately explain what's going on, instead dropping to her knees to take out your cock, teasingly sucking and stroking it as she asks you if you'd like to know what her plan is for your wife. She tells you that since she hasn't been able to fit your cock in her ass, as it's so big and her asshole is too tight, she has decided that tonight you can use your wife's asshole instead - but you have to imagine that it's Fiona's ass as you fuck it. Fiona will be there telling you how to fuck it, and you can take out all your frustration on your wife's hole while Fiona eggs you on. You of course agree and Fiona delightedly sucks and gags on your cock until it's rock hard, then guides your cock to your squirming wife's ass and tells you to slide it in. As you begin to pound your wife's hole Fiona watches and plays with her pussy, dirty talking about how much fun she's been having with your little arrangement, and how she hopes that you'll get her pregnant soon. She tells you to be sure not to cum in her sister's ass, as she wants you to fuck her pussy and cum in it so that you can impregnate her. You pound your wife's asshole until you get close to cumming, then Fiona pulls back her head and makes her clean her ass off your cock so it's ready to go in her pussy. She then begs you to fuck her tight, fertile young pussy while her sister watches, and you both cum together as you shoot your load deep inside her! She then shows off the load you've given her to your wife, taunting her and saying that you should leave her tied up for the rest of the evening and make her watch you fucking over and over again!