You've picked out the parts where he refers to her breasts to make it sound sleazy, when the point of the verse is he fawns over every aspect of her. It's meant to convey pure love by the way he expresses his love of every single part of her and then the sum of all those parts.
By the way you've cherrypicked it, one would assume it's an entire verse of a man fawning over a woman's tits. >.<