"Oh shit, Sis!" Ralph stopped moving his hips off the bed, letting Trisha do all the work. She was humping hard enough now for both of them. The juices of her pussy had soaked down her inner thighs, mingling with his dick hairs. "You're really doing it now, baby… oh fuck, my prick is so hard… my balls have got so much cum in them… I'm gonna shoot my wad any fucking second."

"I'm gonna c-c-um too, Ralph," Trisha stammered. Faster and faster she fucked her brother, thinking only of the sweetly agonizing sensations pulsing through her pussy. "Oh, God, Ralph, I can feel it. Unngghh! Awww, Ralph, I'm gonna cum on your dick! Ahhhhhh! Awwww…"

Indescribable waves of pleasure burst deeply through Trisha's cunt, drenching her pussy completely with juice. The muscles of her ass and lower back tightened like a vise. She felt her cunt muscles contract, tightened around the thrusting shaft of Ralph's cock. Then she was cumming, as hard as she'd ever done in her life.

"Fuck me now, Ralph!" she shrieked, whimpering and squealing as the cum exploded in her body. "Awwww fuck me, fuck meeeeee. I'm cumming! Unngggghhhh! Cuuuummiiinnng…"

Ralph grunted and lifted his hips off the bed, burying his warm, throbbing dick to the hilt in his sister's buttery fuck tunnel. Then the second load of his jism squirted from the angry purple knob of his cock.

It was a big cum. Ralph kept his prick deep inside her pussy and moaned with pleasure as the cream squirted out of his slit, filling his sister's cunt with his cum. There was so much of his cum that it filled her pussy to repletion. Ralph watched as his dripping jism bubbled out of her cunt hole and ran down her thighs.

Trisha smiled and shut her eyes. She felt satisfied now, not in the least bit guilty. Ralph would be leaving for college soon, but they still had weeks to go before his departure. This would not be the last time she fucked and sucked her handsome older brother.