OK, this all started one day when i had to wait for my friend to finish his salad at school in the cafeteria. he had i tiny container of vinegar and oil so i was bored and began shaking it. As both of the liquids mixed, it reminded me of cum so i went to the guys bathroom and pored a bit on the handle of the stand-up toilets. it was all dripping and sticky, so me and my friend stepped out of the washroom and waited in the lounge that was next to the washrooms. we waited for a couple of people to go inside and we heard horrified screams. it was so hilarious, the teachers tried to find out who did this. So me and my friend had a great laugh that day.
