2T4U/Jack/Raped Melony and Missy/Tiffany's room/Ass/Bribe/Force
You don't want to hurt her, but your raging boner need relief and has taken charge. You use your thumbs to spread her ass cheeks further apart, while wiping your precum up and down over her starfish entrance.
"No, No, Not there," she cries, but that only makes you more determined.
"Sorry Squirt. Just relax and let it in."
She keeps struggling and crying complaints as you push the blunt head of your dick hard against the tight entrance. Something has to give and she yells even louder as her sphincter gradually gives up the struggle and begins to open up. You know you should worry about the noise, but you already fucked both her sisters and Mom seems to think it's okay, so you keep pushing.
"Shut up and relax," you snarl as her cries turn to screams and the head of your dick finally pops inside her. Sometimes, when you are masturbating, you grip your dick real hard to delay a cum. Tiff's ass is gripping you much tighter than that, It feels as if it's an a vice, but even though it hurts, it's is pleasure as well. The sight of your dick planted in your baby sister's ass is a huge turn-on and after holding still for a while, you see if you can push a little more in.
Tiff's shouts have dropped to a whimper now, and she barely reacts as you slide another inch into her. The friction is too much for you and you start pumping spunk.