We bought our gorgeous kitten home 4 weeks ago when he was 8 weeks old. He's so lovely but insists on sucking on my neck or chin everytime he jumps up for a cuddle. I thought he would stop doing it once he felt more secure but he hasn't, it goes on for 10-15 minutes at a time and if I move him he just cries until I let him back. How can I stop him doing it without upsetting him or do I just have to let carry on until he grows out of it ?