Look at the garments in question -- they have no texture or colour. they're exactly the thing you draw in to censor art someone up the chain has decided is too risque. Find the original pencils -- hell, find the original inks -- and I'll bet you that there's no sign what so ever of those bikinis.
Not to mention that as a practicing nudist, I just don't find it conceivable that Storm would still be wearing anything when at least one other person in the group isn't either.