" I didn't know," he said after a long pause.Suddenly, the bedroom door opened and Casey walked into the room wearing a robe. She stood not far from t...e bed biting her bottom lip, as she looked at her mother. Mother and daughter stared at each other for a long moment, before Casey suddenly shrugged from her robe, and let it fall to the floor at her feet… she was gloriously naked."I'm bisexual too, Mom," Casey said softly, as she stepped forward between her mother's legs."Darling..." Tammy. "Her hand dropped lower, skimming over the hairless swelling of her mons. With a little pluck, her fingers pinched at her inner lips and pulled one. Again, she let out a little moan and her hips swivelled. I watched transfixed as she dipped her middle finger into the slit and drew it up, separating the fleshy lips as she sought her clit.When she reached the tiny hood that concealed her button, her hand flattened and cupped it, then quickly curled again to draw circles around and around it. With. “See how quick he responds?” she asked.I nodded and soon his bulb was even bigger than before.“Once it gets THAT big, it’s safe. He won’t be able to push it in. That’s when you get behind it and hold it, like this.”She moved my hand behind his knot, again making a tight circle with my thumb and forefinger. Prince began to whimper and move his legs.“Hold his knot close to my pussy, so he feels my heat. He may keep humping, but don’t let him pull away. Soon he’ll think we’re tied, and then he’ll. Well I say girlfriend, she was his fuckbuddy ( I think she had a proper boyfriend), but I was too young and too niave to know what a fuckbuddy was back then. I was also attached and idealistic and didn't really appreciate that later in life these things don't always happen.I had a place in town, Pete didn't. He'd taken her to the pub in the afternoon. After a few drinks they were both in the mood but with nowhere to go. They popped round on the pretence of seeing me. The pretence didn't.