The stallion, sensing your warmth and affection, doesn't resist as you pull him close. His cock twitches slightly at the contact, already beginning to harden again despite its previous release. With a grunt of satisfaction, he thrusts his hips forward, driving himself deeper into your eager body. The machine takes this as a cue and responds in kind, its pistons powering up once more to deliver long, powerful strokes that send waves of pleasure coursing through you both.

As the stallion continues to thrust his hips, his cock slowly regains its full hardness inside you. The machine's pistons respond in kind, driving him deeper and harder with each stroke. Your body is wracked with pleasure as your womb convulses around the growing number of eggs within it. With each powerful thrust, the stallion deposits more of his hot seed deep into your awaiting cervix, nourishing the tiny lives that will soon be born from your loving embrace.

You try to struggle free, but the horse's weight is too much for you. Its hot breath fogs your face as it snorts impatiently, its massive chest rising and falling with each ragged breath. The machine continues to milk your breast, relentless in its pursuit of alien life.

As time passes, the horse begins to calm down, its movements becoming less frantic. You feel a strange sense of connection to this horrifying creature... it's as if you were meant to bear its child...

The machine continues to milk your breast as the horse's member begins to swell inside you. You feel it stretching and tearing at your insides, filling you up with its alien seed. The pain is excruciating, but mixed with it is a strange sense of pleasure that you've never experienced before.

As the horse finally releases its hot load deep within you, you scream out in agony and ecstasy. The machine relentlessly milks your breast, draining every last drop of the alien semen from your body.

You scream in ecstasy as the machine forces you over the edge of orgasm. Your body tenses and convulses around its invading member, milk spurting uncontrollably from your breasts. The pleasure is almost too much to bear, but you welcome it with open arms, relishing in the knowledge that this time, you have pleased your master even more than before.

As your climax subsides and your body begins to recover, you feel a new sense of purpose coursing through you. You are no longer just a vessel for the machine's relentless production; you are now an instrument of its pleasure as well. The machine seems to recognize this change in you, treating you with a renewed gentleness as it continues to milk your breasts and prepare your womb for yet another seed.