Not wanting to turn this into a sex site, I still can't keep from offering you a taste of the Sex-Avonturen van Lucky Luke drawn in the 1970s by Paul Schuurmans. It was published in monthly installments by Dutch or Belgian sex magazine Rosie.
Paul didn't do a bad rip-off job at all. If a wee bit sloppy ("Averel" should be spelt Averell). What strikes me as funny about this one is that it is not so much a reference to Lucky Luke as to Tintin in The Land of the Black Gold, where detectives Dupond & Dupont (Janssen en Jansen) get lost in the desert and are tormented by fata morganas. But there is a Lucky Luke (Dupuis #23 The Daltons at Large - De Daltons op vrije voeten where the Daltons do get lost, and thirsty, in the desert. No fata morganas, though.
I have to explain the joke, really sorry and apologize all over the place, but you may not know that it is precisely the most stupid Dalton who can enjoy the situation. If you did know, you've had your laugh already anyway.
You might as well go away now, there's nothing more here.