Suddenly I felt her pull away from me then felt her hand on my shoulder, then on my hip, as she must have turned around and was now moving toward my cock. I felt the vibration on the tub floor as she got down on her knees, then felt her leaning in towards me, one hand on my hip and her chest beginning to press against my groin. Her other hand reached around and took hold of my erect penis and began to pump it. I leaned back against the rear tub wall and groaned as she rubbed the head of my dick side to side on her chest between her breasts.
In the darkness, I could feel the softness of her breasts as she pumped my shaft and rubbed the tip back and forth. Her hand left my dick and went to my waist and she mashed her chest against me, squeezing my penis between her wet breasts. She arched and flexed her body to rub against my dick, sliding it through her cleavage.
“Oh, god!” I exclaimed, “I’m cumming!” I said through gritted teeth as I felt my penis grow white-hot and felt the fluids rushing through my shaft.
Her hand slid back around and grabbed my dick and started pumping forcefully, holding the head of my cock to her chest. I grunted and felt my cum shoot out of my body. Her hand didn’t stop pumping and jets of my cum sprayed out of my cock and onto her bare flesh. After three gushes of cum I thought I was done, but her fist slid up and down even more and my head began to swim as I felt my cock swell again and let out another, and then another jet of cum. I sucked in a breath and immediately felt it well up again and I let out yet another shot of cum, grunting loudly.
Her hand finally slowed down and she tenderly rubbed her thumb on the underside of my head until my shaft softened and my body relaxed. I felt her get up again and get back into the water. I was too spent to take my shower, so I found my washcloth and dampened it and wiped myself down with that. She turned the water off and I reached out and found our towels.
“I’m going to turn the light on…” I warned, flicking the switch.
My eyes burned for a second and I blinked in the glare, then focused. I looked over at Jen… and my heart leapt to my throat. I had expected to see my sister, but standing there, completely naked, was my own mother. My mind immediately began reeling; I felt dizzy.
“Mom!” I said, “I didn’t know…” I stuttered and couldn’t get anything else out as my mouth became dry. I sat down on the edge of the tub, my heart pounding in my chest so hard I could hear it in my ears.
“Oh, honey…” she said, bending down and putting a hand on my shoulder to steady me. “Calm down! It’s okay! Just relax…” she said. “Breath honey…”
I tried to obey, but I could not believe what I had just done. And she was still totally naked, right there in front of me. I almost felt sick with fear for what had just happened.
“Hey Mark…” she said. “Mark!” She said again, lightly slapping my cheek. “Don’t make it seem like it was so bad!” She said, sounding a little miffed.
I took a breath and looked up at her, swallowed, and said, “Mom, I’m sorry. I thought you were Jen.”
She smiled warmly. “I know honey. I’m sorry, I should have said something. Now shut up and breathe!”
I looked back down at the tub and breathed slowly. The spots in my eyes started to fade. She sat down on the edge of the tub next to me.
“I’m sorry Mark. I didn’t mean to shock you like this. Just calm down, I’m not mad, everything’s okay.” She said.
I looked over at her.
She grinned ruefully at me. “When you came in and turned off the lights, I was startled for a moment and should have told you right then. I’m sorry honey, I didn’t know what you were doing.”
“I guess you found out pretty quick.” I said.
She smiled again. “Yeah, I didn’t think any of that was going to happen! As soon as you touched me, I didn’t know what I should do. I thought you’d say something first and I was going to tell you then.” She pulled a wet lock of hair behind her ear. “Then, to be honest, I stopped caring. After a few minutes, I didn’t even think about telling you it was me. I guess I was a little greedy. It’s been a while since your father and I were that frisky!” she said and grinned.
I moaned. “Oh my gosh, what’s dad going to think about this?” I said, putting my head in my hands.
“Hey!” she said, poking my shoulder. “That’s my business. I decided to do this with you and I’ll tell your father what happened. He’ll understand.” She smiled. “I may have to make it up to him, but he’ll understand.”
After a while I finally calmed down enough and could stand. We dried off together, and I tried not to look at her too much. Really…
Okay, I did look. My mom’s really hot. Her hair is long and wavy; a deep chestnut color that stuck together in thick strands until she towel-dried it off for a bit. Her breasts were much larger than Jen’s. They were broad and full, and her nipples were larger than Jen’s as well. They hardened as she dried off and I was amazed to realize how lucky I was to have at one time suckled from that chest. Her pussy was dark haired and well trimmed around the edges. Jen kept hers a little bit thinner, but with my mom’s rounder hips it made her look all the more womanly. Her stomach was toned and her thighs tight, and as I already knew, she had a firm butt.
She put her robe on, then smiled and gave me a kiss on the cheek before leaving for her room. I went into my room and dressed, then went and watched a movie with everyone as though nothing new had happened to me that evening.