Kim has a lot of chores to attend to, including doing the washing up. It doesn't bother her in the slightest that she's got a big poop in her diaper, and is quite happy to do more if the need arises. It's just much easier to wet and mess herself instead of using the bathroom like a big girl.
But when her boyfriend comes into the kitchen he can tell what she's done, and wants to know how long she's been wearing her diaper. Kim admits to having been wearing it a while, and he strongly suggests she needs to be changed. She says she's too busy for a diaper change now, and looking over her shoulder, even claims "There's still some room in there!" It's obvious that Kim is plenty used to wearing a poopy diaper around the house, and doesn't mind at all.
Her boyfriend on the other hand is insistent that she needs to be changed, but when he starts to feel the dirty bulge in the back of her diaper with his hand, he begins to get other ideas. "Yeah, that's pretty full!" he says, but the more he feels the bulge, the more "full" it starts to get in the front of his own pants!
Kim's dirty diaper is turning him on, and instead of his hand, soon it's his cock that he's got pressed up against the warm bulge. At first Kim is a bit reluctant. "What are you doing? I'll change it later!" she says. But after he pulls the back of her diaper down to expose the huge mess inside, and she realizes what's about to happen, she slowly starts to change her mind. "I don't know - I've got a got a lot of work," she says unconvincingly, but as soon as he bends her over the sink and slides his cock into her pussy, and resistance is well and truly gone.
It's great to see Kim bent over the sink, her butt all messy, her heavy poop filled pullup hanging down about mid thigh, and moaning with pleasure as he fucks her from behind. At the same time as she complains that he's making the mess worse, she's gasping about good it feels. "Oh fuck! Mmm. All I can feel is that stick you're giving me!"
The best part is where he puts his hands on her shoulders and pushes her further over the sink, and she uses her hands to spread her dirty butt cheeks wider to give his cock easier access to her dripping pussy. "Oh yeah. Fuck my dirty little snatch!" she screams. The "dirty bottom line" is that girls who like the feeling of their diapers full of poop also like the feeling of their pussy full of cock!
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