Adultery My Mom & the exchange student

[Penetration]

　I guess it's because my mother is in a good mood today.
　　At noon, Sam and Li Xiaojun and I all had lunch at college. After lunch, we returned to the classroom to rest because there was another English test to be taken in the afternoon. Since there was an English test in the afternoon, the English teacher came to the classroom to explain some difficult points to us. Recently, I have seen English teachers dress a lot more conservatively, always wearing long clothes, and the flesh that was previously exposed is now tightly covered. This makes me wonder, has she changed her ways? It's possible, after all, she is a people's teacher who sets an example, and she is also a young mother.
　　"Sam, you need to teach them more English, otherwise they won't have the chance to come and play with you when you go back..." The
　　English teacher sat dignifiedly on the podium and looked at Sam.
　　"Hey, good teacher, I will definitely teach at least one of you!"
　　Sam said to the English teacher with a playful smile.
　　"Okay, you guys, try your best for the exam this afternoon!"
　　After saying that, the English teacher looked at Sam, got up and walked out of the classroom, her flesh-colored high heels clicking on the hard cement floor.
　　"Zihan, I have another question to ask Teacher Sun. Do you want to come with us?"
　　Sam looked at me.
　　"I want to take a nap, you go ahead!"
　　Sam is really not ashamed to ask.
　　"Well, then I'm going!"
　　Sam picked up the English book and walked out of the classroom.
　　"This guy is so excited to ask a question."
　　I shook my head helplessly, closed my eyes and prepared to take a nap.
　　But in his mind, he thought about the scene of Sam going out, and something felt wrong.
　　I seemed to have found the reason. When Sam stood up, although he turned around quickly, I seemed to catch a glimpse of the gray shorts he was wearing, holding up a high mountain peak?