The silvery fluid reacts to your proximity, turning pink, and imitating the shape of your cock, a cloud of gas surrounds you, and your body hair disappears, you have a compulsion to touch the cock, it wiggles on your hand like a living being.

You fight with the spell and you drop it, but before you can run, it transforms into a mass of pink slime and captures you.
It melts your clothes, instantly adhering to your body like a living second skin.

It spreads to your intimate parts, and when you try to hold it, it's like trying to hold water, it slips from your hands and your efforts are futile.

The intelligent creature detects your heart pumping, your fear, and your desperation.
You feel a warm fluid invading your ass and soon after that, you relax.

The slime rubs your nipples and stimulates your cock, you struggle to resist but are humiliated, you can't endure and you cum... Do you notice how the creature pumps your semen and redirects it to... your ass??!!
Desperately your try to stop it, but you can't, and after a few seconds, you feel your own cum inside your ass.

The slime can't understand how the humans work and try to impregnate you until you are so exhausted and affected by the aphrodisiac enema, that you faint.

Unfortunately, the aphrodisiac has irreversible secondary effects on your body and mind, and you are forced into a comma.
You are discovered, mindless, covered in slime, and used like a test subject, but you never wake up.

THE END
Failed impregnation ending

Task: hold a dildo and shake it. Take off your clothes, cover your ass with a warm wet towel, and fuck your hole with the dildo for 5 minutes. Rub your nipples and use a warm rubber pussy to stimulate your cock until you cum. Try to resist but act weak and relaxed. When you cum, collect the cum with a syringe and insert it in your ass, act humiliated. Act mindless and pretend to faint.