Chapstick?

An old cowhand came riding into town on a hot, dry, dusty day. The local
sheriff watched from his chair in front of the saloon as the Cowboy
wearily dismounted and tied his horse to the rail a few feet in front of the
sheriff.  "Howdy, Stranger."  "Howdy, Sheriff." 
The cowboy then moved slowly to the back of the horse, lifted his tail
and placed a big kiss on the horse's butt hole.  He dropped the horse's
tail, stepped up on the walk, and aimed toward the swinging doors of the
saloon.  "Hold on there, Mister," said the Sheriff, "Did I just see what I think
I saw?"  "Reckon you did, Sheriff. I got me some powerful chapped lips."
"And does that cure them?" the Sheriff asked.
"Nope...but it keeps me from lickin' 'em."