Do what turns you on the most.
I love NTR.
The cool thing about sexbots is after you fuck them(for quality control purposes), you could whore them out and make some money. Sexbots would make great prostitutes!
On a side note, The MC could make a sexbot of his OWN mother, because he's always wanted to fuck his mom, so after he makes a sexbot of his mother, HE fucks it right? But, then the MOM FINDS OUT that her own son made a sexbot of her. She begins WATCHING him fuck the sexbot in secret, but then she BECOMES AROUSED. CLIMAX: The mom turns off the sexbot and climbs into bed, pretending to be the sexbot, and the son gets ready to fuck his sexbot mom again, but in actuality HE ENDS UP FUCKING HIS MOM FOR REAL. But player doesn't know that, once he finally comes inside his real mother, then the MOM SCOLDS HIM FOR BEING SUCH A PERVERT or somethign like that, and the PLAYER FINDS OUT it's the real mom!
Your sexbot idea sounds like it could be a lot of fun. Look forward to future updates with whatever you do.
(SEXBOT PROSTITUTES FTW!! Especially after the MC falls in love with them. Who wouldn't want to whore out the GIRL OF HIS DREAMS?!... If you don't plan on doing NTR, it looks like other people really wanted some kind of incest, so that seems to be a common request so far.)