I farted on my senior!!!!!!

Last year I went to the English camp at Kanchanaburi. I was studying in 2 year and I have taught in the Listening Team. In my team, we had 3 people, me and two young brothers. we did an activity together on the first day and we began to teach on the second day. After that we have a lot of free time and we enjoyed the activity until the last day of the campaign “ English with love for the young” Before we went back, we said goodbye and thank the children for their cooperation. After that, we went to a Wooden Mon bridge at Sangkraburi , Kanchanaburi province. We took a photo together and bought souvenirs to bring home. Then my friend who name is Yean wanted to go to the restroom while we waited for Yean with my senior in front of restroom. My senior sat down and he turned his face into my ass. Next, I fart on his face.
-He said to me that “Do you smell shit? “
-I said to him that “We are staying near the toilet”
After, I came back to the camp about 1 month. I told him about this story that I farted on his face and he was very shocked!!!!
This is my group. Someone in this picture is me!!! Can you guessed who am I ?