They aren't blood-related iirc.
"Many many years ago, when she was 23, Darci married a sweet widower as handsome as can be.
This widower had a growed up son who had the hair of red, Gabby fell in love with him and soon the two were wed.
That made Gabby her daughter in law and changed her very life, her mother was her daughter because she was her step-sons wife.
To complicate the matter even though it brought her joy, Darci soon became the mother of a bouncing baby boy.
The little baby then became the brother of her step-Dad, which then made him her uncle, which made Darci very sad.
For if he was her uncle, well that also made him brother to her very own daughter in law, who of course was Gabby, her mother.
She's her own Grandma. She's her own grandma. It sound funny she knows, but it really is so, Darci's her own Grandma..."
Um... wait... no... that is not what what is going I....
She was not her own Grandma, or Mother, it was simply a Darci from the future who showed up and guided them when they saved Gabby.... at no point is it hinted that she is her own grandma. Just like it is 99% likely the stranger at the portal in the mask is the MC from future timeline.
That said, I HOPE Darci IS her own Grandma, and her Grandma is her daughter, and Gabby is our daughter, and we all have SEX.
If God is omnipresent, every act of sex is really selfcest; everyone having sex is just his multiple-personalities unknowingly masturbating him/themselves/eachother. A more truthful scenario would be more like a transcendent non-human Buddha lucid-dreaming of pure bliss coming direct from the source, welling up from within, a self-induced divine-revelation in the form of a raw stream of infinite/eternal perfection. Definitely worth being jealous about, but jealousy is such a negative emotion. better for us to simply find our own perfections which are more suited to our own present perspectives. Few people are ready to be a buddha. But I get the impression you might want to give it a try for a while. Good Iuck. Sweet dreams. ;-)
But in that case, you could be your own anything.... I would believe you, but you seem to be rather timid, if what you say is true... because you could not only be your own son, but your own grandpa, grandma, mother, and cousin Bob.... NO... YOU SHOULD BE... then it would be incestuous orgies all the time!
DREAM BIGGER, you can do it ;) :P
But I don't have an incest fetish. I just kinda miss my sister who I was caught wrestling with in bed that one time, and we weren't blood-related anyway. But I hear my biological mom was a cute redhead and if she had daughters then maybe I could be incestuous with my half-sisters, but I'm not even trying to go there, and my dad was blonde and I !like blonde girls too, but I'm still not trying to go there. It's hard enough just trying to find someone I can get along with, you know?