imagine dogsitting a big rottweiler and getting bored and horny in the owners' empty house so you unbutton your pants on the couch while he's taking a nap and start touching yourself and he wakes up to the smell of you and your eyes are closed so you don't see him come up to you until he's already got his nose in your crotch and you're gasping and squealing and trying to push him away but he's strong and stubborn and you smell delicious and his tongue feels sooo good when he starts lapping at you and it's been sooo long since you've had anyone touch you so you give in and ignore your shame and let him eat you out and hump your leg until you're both so desperate that you bend yourself over the couch and he's whining and trying to mount you and you're shushing him and trying to ignore how wrong and disgusting it is that you're trying to help him line up his cock with your human hole but he doesn't care about "wrong" and you didn't say "no" and it's too late to stop him anyway because his big heavy paws are holding you down by the shoulders and pressing your face into the cushion.and he's rutting his hard red cock against you so you're frotting with him no not him it's a big stupid animal and it doesn't know any better and you do and it's rubbing on you and it's whining and panting in your ear and then it shifts a bit and oh fuck the tip is inside you and that's so disgusting and you need to stop this. and then it thrusts into you and fuck its cock is bigger than it looked and it's so deep inside you and it's not stopping and you forget for a moment how wrong this is because all you can focus on is how good it feels to be bred from behind like a bitch and it's fucking you harder and faster and you're both drooling and its hips start to stutter and you panic because it's one thing to get fucked by a dog but it's a whole new level of disgusting to be full of actual dog cum so you start to earnestly fight back and yell and beat at the dog but it decided to put a litter in you the moment it tasted you so it bites down on the back of your neck and holds you in place and growls as you both get close to orgasm and you're sobbing with pain and fear and humiliation and regret by the time its knot is swelling inside your hole and it's so big it hurts and it's stretching you so much the dog couldn't pull out even if it wanted to and it keeps trying to thrust deeper inside you even as it fills you up and its cum is so hot and thick and you're so scared and embarrassed and fucked out that you can't stop yourself from cumming on its thick doggie knot and now that the dog is satisfied it lets go of your neck and licks the blood from the bite while it waits for its knot to go down and you just have to lie there underneath it and cry and come to terms with what just happened.