With a gasp you see it's rump jerk back towards you. Stumbling you collapse to the floor, shaking your head... then stare up as the horse backs up to you... and sits down on you! It happens so fast you don't even have time to say anything before those firm buttocks press on either side of your face and press down. Wriggling it wedges down tighter on you, and you feel it's little sphincter stretch on your nose! It's buttocks spread on either side of your face as you struggle, to no avail as it lets more of it's weight settle on you and...
*PLOP!*
You grunt as your whole head disappears up the horses butt, it's cheeks settling lightly on your shoulders. Surprisingly it doesn't smell in here, but it's weight stops you from lifting it off you at all.
Slowly it settles harder, and you feel it's buttocks spreading more, gently parting enough to slide your shoulders inside. You can't resist and it settles down harder, your naked chest oozing inside the rump, tight sphincter muscles clenching over your breasts tightly and making you gasp inside it's moist depths. It keeps settling harder and harder, it's butt sliding down to your waist, then it's buttocks reach the floor either side of your own rump and it sits down finally.
