He doesn't care whether you're gay. And he doesn't care whether you're attractive. He knows the score. Just contact him outside of work. "I saw your ad in rentmasseur. Great pictures. Do you offer any sensual options when you see private clients outside the spa?" Be polite, friendly, respectful, and appreciative. I promise he won't dump you as a client (at the spa) for asking for an erotic massage. He is paying for that ad.
