Rachel's Turn in the Backseat

Rachel sees Makaylah get in the back with you and jumps in the middle to keep her slutty friend away from your cock like an extra short chaperone. She squints at her friend. "Kayla, no fucking my brother."

Kayla pinches her. "No being a bitch, Rae-Rae."

You slip your hand into the waistband of your younger sister's shorts from the other side and cup her ass. Rachel squirms but you've got a firm hold on her. "I've missed your lips on my cock, sis. I know you came to save me because you want your tonsils to be for my cock alone."

"Wait, no, that's backwards," Rachel protests, but you pull her by her ass towards you and push her into the snug footwell of the backseat between your hairy legs. As a fun size girl, she fits just right. You push her ass down to her heels so that her barely clad tits come up to the seat and your trouser snake falls on her bare shoulder.

"Suck it, sis," you tell her.

"No," she says and scrunches her nose.

"You coming back for me made me hard. Don't be a tease, Rae-Rae. Suck my dick," you say and poke her cheek.

She reluctantly opens her pert mouth. You slide your cock in, and she starts sucking. Her mouth is tight around your cockhead, and her technique is getting better. She's turning into a well-rounded Blowjob Universe sister. You let her bob on your cock.

Kayla looks down at Rachel bobbing her mouth on the tip of your cock critically. "Oh, if Rae-Rae wants her big brother's cock all to herself, she's going to have to do better than that."

The black girl wraps her hand around the back of Rachel's head and pushes, forcing Rachel's uvula and tonsils against your tip. Rachel tries to breathe and swallow her spit, and as she pulses your cockhead makes it past the bend into her throat. Kayla doesn't let up the pressure, and soon much of your dick is down Rachel's tight throat.

Rachel scrambles and tries to push off, but Kayla doesn't let your sister escape your dick. As soon as Rachel's throat is almost dick free, she slams her head back down where it should be. Again and again, Kayla fucks your dick with Rachel's throat. *gack gack gack* You just sit back and let the girls at it. You're convinced girls Rachel's size are made for deepthroating massive dicks like yours, and a little friendly guidance is bound to help Rachel reach her full potential.

By the time the car is pulling into the high school parking lot, the fight has gone out of Rachel. She's almost a willing throathole for you in Kayla's friendly hands. Kayla slams Rachel's throat on your dick faster and faster, until Rachel chokes again. *GLUCK GLUCK GACK* The renewed tightness in her throat pushes you over the edge, and you pump your bountiful cockmilk down your sister's gullet until she's overfull.