And with that, Lily felt her sister's futanari cock expand to its fullest length. Soft, Kimmy's cock was about 9 inches long and thicker than most guys that big. Like a big wet noodle too big to be contained it burst out from her bikini and Lily shivered with pleasure when she felt its warm, wet flesh against her belly. "Stop it! Put it back!" Lily said, her mouth opened in shock. "What if somebody sees it!" After her sister did retract it, Lily added "If you stood up like that, they'd probably throw rocks at us!" Kimmy grunted before kissing her sister again.

The two sisters had absolutely no...