http://fenoxo.com/play/ 

"As you take the winding path up through the rocky trail, you come upon the opening to a cave. Peering inside, the stench of an overpowering musk washes over you. The primal scent excites you, causing you to become aroused almost immediately.  Not thinking as clearly as you normally might, you slowly sneak your way into the cave. Signs of life litter the cave floor.

Suddenly you're grabbed from behind, your arms held together by a single massive, furry hand. A heavy, snorting breath brushes the top of your head. You turn your neck to see a massive bull-man. His impressive dick presses into the small of your back as it grows larger and harder, smearing its precum into your skin and making you shiver.  The bull-man roughly grabs your hair and begins rubbing the flared head of his penis along your pussy.  You're shamefully wet by this point, and your knees are ready to buckle. 

He lifts you into the air, with little effort hefting your insignificant weight, and roughly impales you onto his shaft, forcing himself as far into you as he can manage. You cry out, and looking down you can see your stomach distending to accommodate his incredible size. Using you like a human cock-sleeve, he simply holds you by the torso and begins lifting you up and down.  He manhandles your tits as he does so, almost violently squeezing and stretching them to his enjoyment. 

Finally, you can feel he's ready to cum. His thrusts become shorter and faster, and just when you think you can't stand it anymore he starts shooting his sperm into you. You notice your stomach beginning to round out from the sheer amount of bull seed being pumped into your belly.  You squirm and quiver, orgasming from the beast's rough usage, soaking him with your pussy.  The bull-man relaxes for a moment, then shoves you off of him and to the cold ground.

You awaken several hours later. The bull-man is nowhere to be seen, so you make a hasty exit."