It was a far cry, Bill thought, from the first time, when he had been bumbling and clumsy and more than a little enthralled. Now, in his own mind and without having to worry that they might be caught at any minute and killed, he could have that little bit of control he had always wanted, and what he wanted was to please Fleur, to be the man she needed him to be. Part of that was about being a father, but part of that was about this - she was part Veela, and she had needs, and he was more than happy to fulfill them. He after all had needs as well.
He slid the other loose strap down her arm until she was bare to the waist, then kissed down her throat and collarbone until he could take one perfect nipple into his mouth, deftly stroking the other with one large rough-skinned hand.