Haha, most men don't like people talking about his chest muscles, especially between the same sex. Anyway, they think that having chest muscles will make them look like breasts, and they don't look good in clothes at ordinary times, so they are all taboo. Men prefer their abdominal muscles and think it is more masculine, but many women like men with developed chest muscles very much. This is the difference between the sexes. So, nothing. If you bring him more keys in the future, there will be the same topic.