Not Your Average Second Lead

I transmigrated into a webnovel, only for my father to bring home Michael—the tragic second male lead destined to utterly destroy our entire family in the future. To make matters worse, his current role in our household is my personal whipping boy. Knowing that a single scratch on him seals my doom, I vowed to change the plot. I transformed myself into a flawless, perfect lady, making sure Michael never has to take a single lash for me. My plan worked flawlessly! Michael grew up safely, remained entirely pure, and finally left for the Holy Empire to become a priest. My survival was guaranteed. I could finally relax! ...Or so I thought.But Michael returned with a devastating confession:“...The truth is, I have an incurable disease.”My heart shattered for my sweet, innocent boy. But the symptoms of this "chronic illness" aren't fever or cough. It turns out, his disease causes him to get rock-hard, unyielding erections at the most inappropriate times, and they just won't go down. Taking pity on him, I decided to give him a "helping hand" (or two) to save him from holy embarrassment.That was my biggest mistake.Now, the modest boy I raised is weeping, rubbing his face against my hand, and completely flipping the script:“As someone striving to become a priest, I have fallen into depravity by daring to lust after a woman... Since I am ruined like this, shouldn't you take responsibility for me, My Lady?”Before I could even process his trap, his innocence completely vanished, replaced by a dark, ravenous hunger.“I feel like I'm going to die if I don't shove it inside your pussy right this second...”Wait, what happened to my gentle, holy priest?! +