Well, man and woman are designed simliar, they are EXTREMELY different in many ways, and each man is different from other men. Some men, in a sexual sense, are attracted to breasts more than buttocks, but some find breasts obselete and just want buttocks, and some just want the vagina and nothing else. To answer your question, men are tempted because of the arousal, and because of the general media's view on breasts, it's somewhat of a "shock value" thrill. After they touch the breast, they feel no fulfillment in their lives. So Men are very tempted to touch breasts because of...
a) They just find breasts more attractive, but most men can resist "trying to touch them" if this is what you are talking about. Are you dealing with younger kids? haha
b) The "Media" through TV shows and Infomercials TELLS THEM SUBLIMINALLY to "grab the breast." It sounds funny, but the TV really is a mind control device
c) Every girl has different breasts. Big, small, etc. Maybe, if someone is trying to grab your breast, you have something about them that they really like.
Just saying, don't blame all "men(or "mens" in your case haha)" for wanting to touch breasts. I mean, its just a thrill for some, but for others, it means nothing.
Hope I helped somewhat? Take care :)
I'm confused by this question. How old are you? People are designed to be erotic to the opposite sex so they will procreate. Breasts are not only beautiful, but they are very sensitive to erotic touch for this purpose, just as women are attracted to mens pecs or faces or muscular thighs. We're all covered with erotic areas; otherwise there would be no children. It isn't rational, it's instinctive. And in case you didn't know, the skin around the nipple is made of sexually stimulating nerve endings in both men and women. It's just the way we're designed.