A new toy

"Sis, like, what if those boys are really big." Tracy says, turning to her sister.

"Oh I hope they are." Mia responds with a perverted smile, licking her lips hungrily.

"But like, if they're really really big, we might wanna stretch some more." Tracy adds.

"True, we better be prepared." Mia replies.

The two of them rise from the red and black dildos buried in their asses before returning to the shelf of toys. Mia looks at each of their options before selecting a short, but extremely thick, white dildo. It has a particularly pointed end designed for stretching open inexperienced holes.

"Get on the couch and I'll stretch you out." Mia says to her sister.

Tracy does as she's told and lies on her back on the couch. She brings her legs up so her ankles are near her ears and uses her hands to keep her cheeks spread and her hole exposed. Mia kindly uses her own mouth to lube up the tip of the dildo before pressing it against her sister's asshole.

"Oh fuck, it's so big!" Tracy moans out as the extra-thick dildo slowly slides inside of her.

"Oh yeah, this will stretch you out plenty." Mia says, her eyes fixated on her sister's asshole as it stretches to accomodate the oversized toy.

Soon enough, Mia is twisting and thrusting the dildo inside her poor sister's asshole. The only time Tracy gets a break is when Mia removes the dildo to make her sister taste her own asshole directly off the toy. Of course, Tracy being the filthy slut that she is, gladly licks it up and down, providing plenty of lube before Mia returns it to her ass.