This is an old site, but delightful nonetheless. . .written with a curiously charming german accent our hero Ulli (and his tortoise Jetta) must be everyones favorite pervert. NOTE: This site deals with, um, adult themes in a tasteful and humorous manner (meaning that action is implied, not stated). Probably very suitable for someone your working with. Definitely not suitable for children. http://www.michaelkelly.fsnet.co.uk/karl.htm
Update: Old Link dead, new link here: http://michaelkelly.artofeurope.com/karl.htm