I think this song is about bisexuality. Sounds like Skin is talking about having a relationship with a bisexual woman, but that woman feels uncomfortable and ashamed of being an a relationship with a woman. She'd rather "do someone else", probably meaning a guy, instead of being with a woman "secretly".
I think this song is about bisexuality. Sounds like Skin is talking about having a relationship with a bisexual woman, but that woman feels uncomfortable and ashamed of being an a relationship with a woman. She'd rather "do someone else", probably meaning a guy, instead of being with a woman "secretly".