My wife's friend suspects that she has no pants.

Hitomi, a friend of a wife who runs away from home due to a fight with her husband, has decided to stay at our house for a while. Although he was acting energetically, Hitomi, who occasionally showed a lonely look on his face, was worried. One day, when I saw Hitomi, wearing a maxi dress that was tightly attached to her body and vacuuming her back, I began to feel a certain suspicion. There's no panty line that should be there. It could be a thong...or maybe a no-panties... ever since then, I've been having a sleepless night...