After transferring to a school that was a girls' school until last year, the school trip is naturally all girls! I feel a bit uncomfortable... And the bath is a mixed bath? I try to keep my distance and hide my lower body, but the girls keep getting closer! And they even take my towel and try to see my dick directly! Wait! Stop! My wish is in vain, and my towel is taken away. And my erect dick is exposed. Then the girls' expressions change! It seems that I have a big dick... And the girls look at me with a sexual gaze! This is an unexpected development that I couldn't imagine, and more and more erotic things happen! In the bath, in the room... They always want me to insert my big dick. Honestly, I'm exhausted.