Whoever makes that interpretation has a dirty mind.
Oh come on now, it’s exactly what Trump meant and the first mental image anyone over the age of twelve would have in hearing the remark. It was something someone with control over himself might have thought but refrained from saying. It’s also the kind of distraction that will dominate the next week or two of media chatter, while the other candidates struggle for air time and Hillary Clinton’s amazing disintegrating armored panel van scandal of the week campaign slides by on page seven.