Follow Through

Your mind wanders, losing conscious track of who you are....

The seeds of the futa virus implanted in you have begun to work. Cum leaks from your mouth and anus on to the body beneath you. You look up as the futas in front of you as they stroke their spent cocks in anticipation of the change coming, trying to get their alien futa cocks erect again.

You again thrust your human cock deep into the pussy beneath you piercing the cotton panties, you feel an overwhelming heat rising in your chest and groin. Withdrawing and looking down, you see your balls swell to volleyball size, straining the taut skin, veins bulging on the surface.

Plunging your still normal cock back in the sopping wet opening, you bottom out, the oversized testes bouncing off her ass. Pausing your thrusting, you watch your cock grows in length rapidly, pushing your body away from hers. The girth of your rod swells in pulses from a garden hose to six inches in diameter. Each heartbeat throb grows the beast. The woman beneath screams in pain and pleasure as her pussy is stretched.

Now with a extra foot of hard meat exposed, you drive forward, hitting her cervix. The impediment stands no against your monster... Precum leaking from the tip begins to change her anatomy and you are able to slide all the way in to her womb. You see the tip of your cock crawling under her skin.

As you piston in and out, your chest bulges under your shirt, ample breasts forming. Milk rings appear and finger length nipples emerge in the fabric. Fabric rips and the watermelon size mammaries are freed. Your hips and ass expand and auburn hair cascades down your shoulder. Looking down you see the same effect on the woman beneath you. Buttons fly from the body below you as her breasts rise to meet yours. With a gasp of pleasure, your infected nipples mate to hers and infected milk pumps to accelerate her infection.

A bulge forms in her underwear. The infection enters its final stage in both of you. Her clit grows longer and larger until the panties snap. Her own she cock climbs between your breasts and reaches your mouth. Sucking as you're fucking, you both come simultaneously. White slime erupts out of your nose and from her pussy. You withdraw from her pussy and two grapefruit size testes swing out of the opening to complete the transition.

You both pass out...