This thread amazes me at the number of men posting and the lack of women. Well from a woman's viewpoint here goes.
First for me it's different in each of the 3 positions. My favorite is Missionary then doggie, then riding on top. I'm not a fan of riding on top because it's just not a good position if you ask me. I've never had the knot in me while riding and if the dog is eager and wants to move around this position just doesn't work well for me. Doggie is the natural position for the dog and the problem here is that they often bounce themselves off and have to get lined up again, and once they're in and going you need to hold onto them to keep them in position. It makes it harder to rub the parts of me to help myself get off while being tied in Doggie so I like Missionary best.
The missionary position gives me the most clitoral stimulation. But in this position the dogs fur rubs lightly against your tits and nipples like a feather and adds stimulation. That's another benefit of the Missionary position. Most of the time I'm edging closer to orgasm up until the tie. Then the sensation of his hard knot's inward pressure, the throbbing, and the feel of his little squirts filling you and the heat of his sperm all at the same time combine many times and cause me to have an orgasm, and if not then I am so close that I start rubbing my clit which by the way is pushed a bit outward from the pressure of the knot and plenty sensitive so rubbing it only takes a minute or two before I have an orgasm. Now I'm one of the lucky ones as I understand it because I'm multi-orgasmic and a lot of times if I keep rubbing my clit another orgasm will happen.
But what does the knot feel like - well you have to take into account all that is going on when the knot is inside you. If I was trying to isolate just the knot ok it fills you full but you see there is more than that because it is pulsating, throbbing, it feels warm, the dog is shooting his sperm inside you and you feel that, and his sperm is much hotter than that of a man. As the dog nears the end of his climax he seems to get a little smaller and he isn't spurting as much or spurting as hard and the dog often starts moving so he can come out. Then bloop and you're leaking his sperm and he is licking away at your pussy. Which by the way is very hot and satisfying too.
I guess that is about it for the way a knot feels to me. But the one thing I have to say is that it's absolutely wonderful and I love it.
