Was the weight room floor set up where there was a floor drain where they could hose down the weight room and it would all go down the drain? would get smelly in there if it could not be       washed down. I'm surprised they did not take their shirts off to see their muscles working in the mirror like we did. it must had been fun peeing on the walls and stuff. did they drink a lot too on top of holding their bladders all day?? did they compare how swollen their bladders were? did this go on a long time?? I showed off how swollen my bladder was. I was not the only one holding it as it's a big school and hallways were packed, and it was all we could do to get to the next class on time. lots of bumps in the hall with full bladders. any ab punching on a full bladder or grabbing around the waist with it full? sounds like a really fun time. did they compete to see how high they could pee, how long they could pee? Did they just hold their bladders during the school day or did they also hold their overnight pee for the pee fun in the weightlifting room? 

Sensors for WHAT

Sounds like a problem many men would love to have.  I guess the only downside would be eventual repercussions:  losing your girlfriend, etc.  Since the sister is willing, and presumably of legal age, I can think of a few upsides, too. If you're willing to accept the negative outcomes, go for it.  If keeping your gf is important, discuss it with her and maybe include her in the fun.

Hi and welcome.  As my friend has already pointed out, this isn't a hookup site.  However I do hope you enjoy being a member of our community and look forward to your contributions.  

Hi and welcome Phil.  I hope you have a great time here.