She reached a hand underneath to cup his sac of balls which protruded fully out from the hardness of his full erection.
The impaled girl could hardly catch her breath between squeals, but this didn't stop her from reaching her hands in back to keep her cunt lips stretched open.
The other minx kept jerking, mouthing and fondling the rigid staff and his taut sac of balls going crazy from the insane sight of just a portion of it buried in her sister's little gash.
Johnny grabbed her twitching ass and pushed hard into the tiny opening which refused to budge an inch. The other one lapped like mad.
Finally the sperm was blowing up his balls. His c**k was on fire and the shaft stiffened and bared the veins to view.
The force of his first spurt knocked the tip of his prick right out of the ti
