Sabrina could tell that Marina wanted Ken terribly but still felt some resistance to her out of duty as her brother. She could tell that continuing to ride Ken would only bring him closer to coming and that wasn't what she needed now.
Tilting her head, Sabrina remembered the experiance she and Luna had had together. She smiled and swung her hips up and letting Ken slide out of her silky smooth pussy. His cock flagged in the air and she sat down on the right of Ken, catching Marina in a deep kiss.
Breaking the kiss, her fingers pawing at the cups of Marina's breasts, pulling down her lacy cups, "what is your idea, Luna, luv?"