Sam moaned, watching as Nessa leaned back on his shaft while she bounced, feeling her tight pussy tug at his cock, each bounce sending a spark of pleasure up his spine, his hands still massaging her breasts, even as her own fell to the side, his hand taking over for hers and tweaking her nipples a little roughly. He felt her hand move onto his shaft as her tight walls closed in more, loving the sensual feel he always got from his twin. His own hips had started to move, thrusting up into Nessa with a moan, his hands falling down to grip her hips as they fucked.  He was so consumed by the moment that he didn't notice their younger sister sneaking in and watching, even as Nessa said she was so close. "Mm..Nessa...I am too..." Sam said with a moan. He could already feel himself starting to go, and he was certainly glad that everyone in their family used birth control.<br/><br/>Moaning out Nessa's name, Sam was about to cum hard when he heard Kana speak up, telling them breakfast was ready when they were done. "Kana! Shit!" Sam shouted, blushing a little at having been suddenly walked in on, as he started to cum, unable to stop himself. His cum came out hard and fast inside Nessa, and Sam was known, at least to his twin, for how much he could produce. Sam's shaft was fully visible as it was buried inside Nessa, allowing Kana to see a small bit of cum dribble out from inside her sister as Sam's body tightened up. When he had finally calmed down, He looked at Kana and sighed. "Knock next time...." He said, trying to scold her, but he was breathing too hard and felt too good to stay mad at her.