兩個男士為什麽摟在一起跳舞？

哈哈，你們想歪了吧！

https://www.youtube.com/watch?v=eomGV4buJzM

他們在跳阿根廷探戈。男男跳這舞常見，但一般和“幸”取向無關。因為：

The dance known as Argentine tango developed in poor areas about a century ago in Agentina, where there were much more men than women amongst the immigrants from Europe.

In order to get attention from the very few girls on the dance floor, a boy must be good at dancing to stand any chance. So they tried to come up with more and more fancy dance steps, and started to practice amongst themselves in secret. During the actual dance, they would suddenly show off these new steps in public to get the girls' attention.

Hence the start of the tradition of man dancing with man in Argenitne tango.

不是俺理工男的菜，但教探戈時總要給學生解釋一下這探戈趣事。