Rolf couldn't help but grin at the way she sprawled across Dennis. Perhaps someone else, he might think about being jealous, but this was Dennis, and Rose, and besides, Rose claimed him and that was enough for him. He bumped his shoulder against Dennis'. While mildly grumbly, he wasn't actually upset at his friend. They'd finish what they started later, when the mood was right again.
He smirked faintly at Rose as she glanced at him. No, definitely no other way than full tilt.
He smacked Dennis' shoulder. "Dennis!" he said, mock outraged at the limp comment (and blushing, definitely blushing a bit). "You're awful," he accused.