You have not at all made it clear why not, Bitmap.Uhm. No.
Yes, absolutely. But once you have trekked through the Schwarzwald for hours on end, nay days on end, Lust of any kind will be the last thing on your mind. Although Nietzsche might disagree: "Denn alle Lust will Ewigkeit, will tiefe, tiefe Ewigkeit.And German Lust can have sexual as well as non-sexual meanings, just like libido in Latin.