You have left your Mom to look after your dog, she's really not keen on him at all but has agreed to watch him for the day. You come back earlier than expected and your Mom is mopping the floor acting weird and flustered. You ask her whats happened and you know she is lying when she says everything is fine. You then notice a milky coloured fluid running down her leg. Wtf, is that cum?? You both look at the dog and then you realise in Horror its Trevor your dogs semen running down your moms leg. She tries to explain herself the best she can, you are shocked but surprised that your dick is getting hard looking at the stream of dog cum on your moms leg. She then explains how it all happened, she was on all fours cleaning the kitchen floor when Trevor started sniffing her pussy and ass and licking her panties. She's a single Mom and hasn't had any action for years and it felt so fucking good so her panties came off so the dog had total access to her wet pussy and asshole. He licked her so good she came all over his doggy snout, then it escalated quickly into her getting knotted deep and her pussy getting filled up with puppy seed. You get more and more turned on listening to your Filthy Moms confession, you almost cum when she tells you there was so much doggy seed all over the floor that has dripped out of your moms cunt and she is ovulating. Contains flashbacks of the extreme taboo deed with a K9 dildo and dripping puppy seed.