Her flushed skin, and her focused effort as she pounded on top of me pushed me to a place where all I could think about was satiating my desire. Takin... control back again, I suddenly grabbed her hips to hold her steady and rapidly pounded myself into her. Her body shook and her eyes opened wide in surprised ecstasy. We rutted like this for what seemed to be an eternity, wrapped in unthinking, animal pleasure. We grunted and sweat in the steam of the shower. My mother's body grew more and more. I would swim close to her, rubbing my tits (which where a cupsize bigger than hers) on her back and then we playfully groped eachother. I had managed to pin my sister against the ladder and I started to caress her tits and rub her nipples. She protested and tried to push me off, but I pushed back and started to kiss her lips. She began to kiss me back and I pinched her nipples so hard she cried out loud. "We're sisters...stop it" she said and I replied "Why should we when we both like it?" She. When she got wherever she was going, she waited for me to help her down. I think we both enjoyed the protracted contact of my hands on her thighs, hips and ribs that usually became hands full of her jutting breasts and firm back as my thumbs slid past her hard nipples. She would smile up at me, shrug out of my grip, rearrange her clothes and stalk away while I took care of the horses and tried to regulate my breathing and calm my aching member.It took me a few of these visit before I realized. I couldn't even cry. Was I sorry? Did I want him? Did I deserve to be punished? Did I need to be punished? I approached him, naked from the waist down. “Yes?” he asked, without looking. “Yes,” I replied. He turned off the TV and brought a kitchen chair into the room. He sat back down and patted his lap. This wasn't really going to happen, he wasn’t really going to spank me, but I still felt pretty humiliated with my ass in the air. His one hand was on my back while the other caressed me,.