From my actual written fantasy!
"
I turn around and holding your cock I lower myself onto you and even though I'm full of dog cum you tell me how tight my pussy is which makes me moan with pleasure coz I know it’s your thick cock making my pussy feel tight. I ride your cock for just a few minutes, slow then fast, fast then slow, deep in me then just rubbing your head between my labia as I get to know you a whole lot better.
I lean back against you which pushes you down onto the sofa and I end up with my back against your chest. I open my legs wide and the doggy comes over and starts licking my clit and labia and your cock as you are fucking me and because there is so much of our juices mixed together they run down over your balls and into your crack and the doggie licks you there and you shudder with delight. You are massaging my boobs and pinching my nipples and in a minute or two I pat my tummy and doggy gets the hint and jumps up on me. I pull him forward and he starts thrusting around looking for my pussy and because you're fully inside me he cannot easily find it. His cock rubs between my labia and over my clit and against your cock and that drives us both insane. I reach down underneath him as he is thrusting away and I guide his cock into what little of my opening is still unfilled by you and he starts to get the tip of his cock inside me. When he senses that he starts thrusting harder and you start thrusting harder and I push down against the both of you and bit by bit he works his cock inside my pussy. The sensation is ridiculous; your cock, his cock, you playing with my boobs, pinching my nipples, biting my shoulder, kissing my ear and putting your tongue in, kissing the side of my face and fucking me while doggy fucks me too. He hammers me for just a minute or two and he starts to come and the pulsating and twitching of his cock makes me come and that makes you come and together all three of us come in a ridiculous tangle of lust and passion, skin and fur. I come so hard and so long that I start to cry just from the pleasure and when you cum you sound just like an animal."