Sexy Supergirl found herself helplessly hoisted and bound to a table. Kryptonite ropes wrapped her throat and torso, the evil mineral sapping her incredible super strength. Her blue and red costume left little to the imagination, accentuating her curvy figure and giant tits. The Black Skull entered, a wicked glint in his eye as he caressed the bound heroine. "You're finally mine, you little slut!" he cackled. Supergirl struggled feebly, but the Kryptonite rendered her powerless. The Black Skull produced a massive penis gag. "Open wide, Supergirl! Time to put that superhero mouth to work and train you for the real thing!" He thrust the girthy gag into her mouth, securing the strap behind her head. Supergirl gagged and drooled around the giant cock muzzling her. "Mmmph! Cough! Mmmph!" She grunted and whined, tonsils smashed against the rubbery intrusion. The Black Skull smirked and roughly slapped her tits, sending jolts of painful pleasure through her body. He groped the sensitive mounds, pinching and tugging her erect nipples. "Ahhh!" Supergirl squealed, tears pricking her eyes. The Black Skull's hand snaked down and delivered a hard smack to her ass. WHAP! The powerful spank sent Supergirl wailing into the gag, throat bulging obscenely. The villain cackled and struck her reddening cheeks again and again. "Ohhh!" Supergirl's pussy clenched as a strong vibrator was pushed against under her skirt. She tried to buck away, but the ropes held firm. The vibrating toy sent shockwaves through her body, penetrating her costume and thick nylons just enough to throb her clit. "MMph! Mmnnh!" Supergirl drooled and shook as a forbidden orgasm raced through her. With a shove, the Black Skull unstrapped the gag, Supergirl gasping for air. He released her arms down, manhandling her gorgeous bound tits. "Hah! You're just a toy for me now, Supergirl! Now, beg me to fuck this slutty pussy!" Supergirl whimpered, pussy clenching in need. "P-Please... please..." she whined. "Use me however you want! I'll be your good girl!" The heroine shamed herself, but the Black Skull's caresses felt so good against her raw nerves. The Black Skull hands Supergirl the vibrator so she may now please herself. She was his slave now, his mindbroken fucktoy. "Thank you, Master!" Supergirl panted. Her eyes crossed in blissed out pleasure, Kryptonian brain broken in by the orgasm overdose. "Please... please keep me..."