Laying rules

I had tried to brush off what happened to my mom, but of course my sister spilled the beans. How I went home with some hot twins, then my mom took control of the situation and I was **** to kneel as punishment for lying to her... I tried to be respectful and not look up her skirt as she sat on the couch, but that made her angry and I was then **** to look at her and consequently up her skirt and her cock hidden under it...

"So, these twins. Are they your girlfriends? Just one of them? Or what?" Her interest in my love life was definitly new... She really did want to keep stealing my girlfriends...

At least I didn't have to lie for this. "No, we just thought a few dates would do first to ensure we were compatible."

She didn't look disappointed instead seemed happy about that. "That is probably for the best. With how long it took you to get over Sarah after my little test I'm putting down some rules."

What? She was? Why... Somehow I knew what her rule was going to be when she spoke it. "They can only become officially your girlfriends until they pass my test."

I had expected that to be honest, I was only a little bit looking forward to it... I had no doubt the twins would enjoy it as well... I just hope not too much. But I was not expecting her next one. "To that end you are not allowed to have sex with them until then either." She waved my sister over who was being suspiciously obedient this time but I didn't even have to hear my mom to know what happened next after seeing what my sister had hidden behind her back.

"So you will be caged to ensure this. After they pass my test you will be released."

My sister knelt in front of me our faces close to each other. I heard her whisper to me. "I did warn you if you show mom how pathetic you were she would take advantage of you." She had a slight smirk... She knew, somehow she knew this was going to happen. "Now lay back I'll get this on."

My sister pulled my dick out, but rather than jerk my off to soften my dick she just forcibly clamped my dick in the cage... It even locked with an audible click. Then a part was removed from the cage a ring with a key... I watched as my mom plucked it from my sisters hands before messing with the ring.

It expanded somehow and from my position on the floor saw as she slipped the ring down her cock until it glinted brightly against her heavy balls.

"Alright, you can get up now." My mom dropped my phone onto me before she turned away. "I made sure to delete that photo of Sarah you had, It is better if you really move on."

I was uncomfortable... I could feel the painful squeeze my dick was subjected to but with what just happened it refused to shrink. If I wanted the twins to be my girlfriends they need to give their virginities to my mom...

My sister was still here leaning over me. She had that grin on her face again. "I wouldn't try getting out that, the lock is specially built... But with how hard you were when I put it on... I guess you want it?"

After staring at me for a while she stood also leaving me. "Well, if you want out you know what you have to do."

When she left I stopped holding back, my cum came out the cage making me a total mess. But as I shrunk I realized I was still feeling that tight squeezing sensation, it wasn't painful but it was like as if adjusted itself as my dick shrunk to prevent any sized erection.

I wiped up my mess quickly as I went for a shower. I could only imagine what my mom would do if she found out just how pathetic I was...