Modeling, prostitution and porno are the few professions where women make more money than men.
if it's not working try something else.
Most guys who advertise as straight/bi are pretending it and they do it to attract men who want to hire someone like that. I doubt most truly straight guys will tell their gfs or dates they escort for gay men... What if you guys change the strategy and contact a working girl and ask her to bring a guy instead.