It doesn’t make sense to me. Sorry for the graphic language, but if a guy has an erection and he search for a porn site, he has no interest in gambling, he wants to get off. If a guy is looking at a casino site, maybe you might turn him on with a sex ad and he might convert to a porn site, but if by chance this does happen you just lost a gambling commission for a $40 lead. That and you risk alienating every other person who visits your casino website.
Keep them separate!