>>11267807
A combination of
>Gender bending that leads to normal pregnancy
&
>Monster girl sperm that "fertilizes" your cells and rewires them to grow a baby

The Futa Cum rapidly transforms the prostate into an impregnated womb (a process that triggers a dozen or more intense orgasms)

Gradually over the course the pregnancy the male body transforms into a female
(Restructuring of the skeleton & face, skin developing smoother texture, growth of Massive Tits, loss of body hair & testicles receding to become ovaries carving the vaginal canal)

There's about a 30% chance the impregnated male will become a futa, which is discovered after the first trimester when the balls finish receding.

If the new vagina has a it's own clit & your dick is growing, you're becoming a Futa

If the new vagina doesn't, you're becoming a woman & your dick has begun shrinking to form the new clitoris (don't worry, if you still want to become a Futa, even as a female, there's still a 30% chance at becoming one during your next Futa induced pregnancy. Hope she wants a big family)