Usually in my room (I still live with my parent but my dog lives in my room) I sit behind my desk to either watch series or movies or just generally browse or do some work. My dog has the same routine usually, which is sticking his head between my arm and waist under my armpit to make sure that I see him. Or maybe that he sees that I look at him. Then, when I look at him, he gets away and jumps on me and with his paws he basically pushes me off the chair on the ground.
(I am 157cm so that's easy for him, he is a mix between a german shepard and a golden retriever which turned him into a Golden Shepard I guess)
Then I just automatically go on all 4's while pulling down my pants and slide my panties aside.
I never force my dog to do anything. I don't hold, pull or touch him. I just let him hump me until he is finished.
When he is done, he often just dismounts (I think my pussy is stretchy enough to easily let the knot get out.
Never been knotted in the ass yet) and starts licking either his own dick or my pussy and ass.
Sometimes he licks my face too after for some weird reason.
I always just see it as him just kissing and thanking me.
But when he is done I get up, pull my panties up and continue what I was doing while enjoying the feeling of my panties getting wet of his sperm escaping my pussy or ass.