We found him when he was 4 weeks old and he didn't want to suckle a bottle then. Now he is 7-months-old and he has this thing where he bites on your face and sucks, especially my hubby, who spent his first week on the couch with him (he bonded with him closest). He is used to sleeping on his chest, so now at bedtime, he comes up on his chest, purrs (the only time he ever does) and sucks on his face, his ear. With the rest of us, if he is sleeping and you go to pet him, he will bite on your hand and suck, or sometimes your face if it is within reach. Is this going to be a lifetime habit or will he grow out of it?