Here in Barcelona, there is a restaurant called "Menage a Trois"...
I also recall a wood stripping product called EZ Stripper demoed in the commercial by a busty blonde with those words emblazoned across her bosom. I also strongly suspect that pizza places who advertise their product as "hot and ready" are well aware that has sexual connotations and consider that to be a feature, not a bug.
Sex sells. Plenty of people use that fact intentionally.