Note to reader: All characters 18 or older.
I awakened to my sisters talking in their bed. I had a morning wood, and I was totally naked. I needed to pee, and looked around for some pants or underwear, and caught Lori's eye.
She smiled, "Did you enjoy last night?"
I nodded. She knew I was naked, and was feeling shy, "We saw you wank last night, and you professed your servitude to us, correct?" I nodded.
"Take off your covers," she ordered, and I complied, making no effort to hide my hard cock, knowing they'd force me to reveal myself anyway.
"Nice," she smiled. "Crawl over here," and I complied, slipping out of bed, onto my knees, with my cock pointing skyward, hands at my sides. When I reached their bed, she reached out and grabbed my hard cock, and I swooned.
"Wow," she said to Lisa, "He's really hard! Feel this thing!"
Lisa declined, but stuck her foot out from under the cover. I started to massage and she said, "Kiss." While Lori played with my cock, I kissed Lisa's foot.
Lori, said, "Mom and dad are gone. You can go to the bathroom naked," as she released my cock.
It was so hard I could barely pee. I returned to the bedroom still fairly erect, and stood waiting, and Lisa asked, "How did you get so tan?"
I told them Annie and Amy sort of forced me to wear speedos all day.
"It looks like a bikini tan," Lori observed. I started to get hard. I tried not to, but I couldn't stop myself.
"Look, He's getting hard! So you LIKE being forced to wear speedos?"
I said nothing, turning red with embarrassment, but my hard cock exposed my inner truth; I DID like wearing femmy panties, and my tan. I admired my tan all the time. Secretly, I'd rather have preferred wearing a women's bikini bottom, with narrower sides. No longer so secret, I looked to Lori and nodded.
She smiled, "So yesterday, you were punished by having to wear panties, and you actually LIKED wearing the panties?"
I nodded, "I liked it and hated it at the same time."
She smiled, "Elaborate."
"In front of you guys and Annie, it was exciting. But it's taboo in the real world. It's risky; most people I wouldn't want to know it. That said, I loved putting lotion on you guys and Annie. My cock was so hard, right in front of you! And Mom! I couldn't believe she allowed it all to happen!"
I continued, "And last night, you laid on the couch and had Dad massage your feet just like you were Mom! I think he was excited. What is happening!?" I realized I was back on my knees. I had unconsciously kneeled, my cock still pointing skyward.
Lisa spoke, "It began to occur to us when we were twelve or so. Mom treated us one way, and you and Dad another. We never have said anything to her, but it became clear, the women rule the roost, and you and dad are submissive to us."
A thin veil was lifted from my consciousness.
Lori took over, "Mom sort of trained us to date boys who'd acquiesce. She termed it as "respecting" us, but it went beyond respect, they would submit. We dated lots of boys, and got lots of practice. We became sort of "expert," we could simply give them a look, and tell who'd make a good mate."
She continued, "Both our boyfriends are "in training" now. For example, we have made it clear, during this summer, they will be true to us, dating no one else, and we can do as we please. Like dad, they are to work every day, and that's it. When they get home in the evening, they call us."
Lisa observed, "It appears that Mom has also trained you well. Look at you, naked and on your knees, rock hard."
She was right. I wanted to rebel, but my mouth watered. I was so excited, somewhat in a state of shock, I nodded.