Sam couldn't help it, as much as he hated what was happening, well not so much what was happening as who was involved in it, he loved seeing his sister get excited and playful and sexy. And it was so hot the way she just dove right in and pulled that big dick out and soon had her pretty little hand stroking it up and down. He couldn't help it, he'd always sort of hated just sitting there watching and so his hand was already reaching out to join hers when her heard Johnny make his demand.<br/><br/>Sam gulped. Seriously? He had to ask for this? He knew Johnny wanted it! Giving just a little hint of a pout he closed his eyes and tried to center himself. Fun and slutty, fun and slutty, he repeated the mantra desperately. That's what my sister wants. It's what she deserves. I can't ruin this for her! His body squirmed against Johnny, his naked thighs rubbing against the hand on them as he took in this sight.<br/><br/>"Johnny" he said in a soft voice as he opened his eyes, glancing up at the man he meant to maintain eye contact but found he couldn't, that asshole was smirking so hard, so his eyes demurely cast down where they landed on his dick. Ohhhh Clarissa's hand was so pretty when it was doing this! "Johnny" he whimpered again "Can I please help Clarissa stroke your cock? Please?" He glanced up again, scared, ashamed and embarrassed but also really hoping Johnny said yes.