funny, i always thought this was pretty simple.. if i wanted to touch a girl's breasts, and something had already happened to signal that it might be appropriate (i.e., making out for a while), i would just do it. gently, of course. not sneaky-gently like i was trying to keep my touch so light she wouldn't notice, but merely gently enough that she could easily push my hand away.

i suppose there's a chance this approach could end badly with a girl who considered the touching of her breasts greatly offensive, but i'm guessing that most girls are more forgiving during the period of exploration and would simply remove the offending hand and continue the kissing.

like i said, a very simple concept. you want something, just ask for it, but in a delicate situation maybe don't ask for it so boldly. give the girl the opportunity to refuse you without embarrasment on either of your behalf.

while it is unquestionably endearing for a boy to ask first, it just as certainly sets the mood and may dissolve a little of the passion that builds up in anticipation of the touching. but just a little.