I don't know, there are a lot of questions to be asked about this.
Is Beth transplanted into my family to be my new mom or am I transplanted into the world of Rick and Morty to be her new son?
If the former, what happened to my old mom? Is Beth my mom because my dad at some point remarried or out of nowhere accepted polygamy? Or was Beth somehow always my mom and gave birth to me? What about my current siblings? What about her old family? How does she feel about being transported to a different world and family situation? Did she choose to be my new mom or is this some sort of freak accident? What does Beth's presence in "the real world" imply about the nature of our universe?
If the latter, what are the circumstances? Does my old family know I'm gone, let alone been isekai'd into the world of a middling cartoon? Could I go back? Am I an adopted child of the Smith family or did Beth cuck Jerry to give birth to me or does my race and genetic makeup change to accommodate the situation? Where is Rick? Is Rick somehow responsible for this situation, putting my very existence in jeopardy as the introduction of Beth's black or otherwise bastard son would without a doubt be a one episode gag leading to my horrible demise by the end of the episode? How does Morty or Summer feel about my inclusion in the family? Hell, how does Beth feel about my inclusion in the family?
Either way, is Beth as sexy in person as she is on the cartoon?
There are too many unknowns to give a solid answer.