Frank the koi plays coy with Daisy the dog

According to the video’s description, Daisy the french bulldog and Frank the koi fish have had a bi-element love affair for a year.  Daisy looks down as if to say; “OK Frank, give me some of those fish lips.”  I’m sure that it’s just a matter of curiosity, but it sure looks like they are kissing.  Is it me or does there seem to be some surface tension?