You're trying way too fucking hard to escape the imaginary cuckold boogeyman.
Even if she did have a surrogate, they'd still likely need to do a similar procedure to get the egg OUT of mom to fertilize before transplanting it into the surrogate after fertilization.
Fuck, Anon. Even if a god damn stork dropped the MC off, it's just not believable that a sexually voracious woman willing to fuck her own son isn't at least some kind of turbo pervert that shoves all manner of dildos or other phallic things up there to masturbate.
You're not getting a mommy with an intact hymen. Deal with it you delusional pop tart.
Just accept that part of being a mother is at least having some level of wear and tear down there.
You want tight, supple young vaginas, pretty much every single one of these games has that naive young virgin in the form of a sister, a cousin, or a childhood best friend that you can ravage.
Mommy's are older ladies with experience and the goal isn't to find some chaste young maiden to be your wife, but to return home. To mom's vagina. To engage in the most taboo of taboo relationships a man could ever possibly enter. To conquer the one woman society, nay, GOD says you should never aim to claim above all others. To claim it so thoroughly that you practically DICK the memory of all former lovers, including your own father, out of her brain, and poison it with thoughts of you. To look at the woman who raised you, cared for you, the one woman who genuinely loves you wholly and unconditionally with no caveats.
And then you flush it all down the drain to get your dick wet. To ruin that relationship forever and replace it with some twisted visage of it's former self. Something perverse and so very, very wrong. But you don't care, because no other pussy has ever felt sweeter and no other ever will. You reached degenerate nirvana.
Stop trying to turn mother/son incest porn into something it's not.