HUNTB-400 Having sex with my cute stepsister in the bathroom while she's still in her school uniform! Why?? Because... while cleaning the bathroom together, suddenly the shower sprayed on her and soaked her uniform!

While cleaning the bath with my stepsister, suddenly the shower hit her and soaked her uniform! Her body lines and underwear showed through, and I stared in awe, accidentally getting an erection! Shit! As I was flustered, my stepsister also squirmed shyly, making the atmosphere awkward. Then, as I was at a loss for what to do, she leaned in close with glistening eyes. What? Wait a minute! She reached out towards my crotch! The unexpected erection triggered an unspoken secret between me and my stepsister that we could never tell our parents.