Help! Get Me Out of My Sister's Novel

He was straight. Even after dying and waking up as the protagonist in his sister’s BL web novel. He was straight. Even with all the male leads practically throwing themselves at his feet. He was straight. Even when his heart inexplicably skipped a beat during romantic moments with one of them. He was straight. Even now... when he could somehow get pregnant. He was straight. There was no denying it. HE. WAS. STRAIGHT! “So, can someone please help me get out of this goddamn novel already?!” [Warning: 18+ content and there will be some themes of non-consent, mentions of abuse and suicide.]