Sirius' smile made Remus melt inside, he knew he was completely defenseless against that smile. When Sirius ran ahead of him, Remus took a few moments to enjoy the sight of that nice backside. Oh, he knew he shouldn't ogle like that, that it was going to get him into trouble, but he could not help himself. His friend was beautiful to him.
When he caught up to his friend he watched the surface of the lake, partly to see the squid and partly to get his feelings and body back under control. The wolf inside him wanted control too, but that could not happen, he usually could not feel the wolf, besides near the full moon, but when it came to Sirius he could. The wolf wanted his best friend as much as he wanted Sirius. It scared him how strong the wolf's feelings for Sirius were.
Just when he thought the squid would not show up the water rippled, "He likes the cookies." Remus said with a small smile and a little surprise in his voice.