In most cases, consuming "Warm Lemonade" refers to an affectionate sharing of bodily fuids. As such, it is not at all like other forms of "Golden Showers" which often have underlying B and D or S and M components.
Since the first pee in the morning is often highly concentrated, it is usually not the best for good tasting Warm Lemonade. Also, note that consuming certain artificial sweetners (such as saccharin, but *not* aspartame) can sweeten the taste of Warm Lemonade.
One word of caution: dont let it cool to room temparature, Warm Lemonade is best when consumed straight from the tap.
Girl: Stop going down on me, I have to pee !!
Guy: Please, my love, let me taste your Warm Lemonade !!