I used to stand very firmly in the 'it's weird' camp and said I'd never kiss my Ds on the lips. Now he's an affectionate little toddler I don't always have much say in the matter as he likes to plant a great smacker on my lips and follows them if I turn my cheek to him..... And it doesn't feel odd at all! I come from a very loving family but we don't really show or vocalise it. E.g my parents would never say I love you to me, my siblings or our children but there's no doubt they do.