We usually make out in the shower, and often I give them head. I only had one boyfriend who insisted on using yellow as well as clear shower water (it did nothing for me, good or bad, so I just followed instructions).
Still, though, it's hilarious that even when we're doing that, there's still those constant shift so we can get hit by the hot water. A hot tub is a much better choice, but I'm so small the heat gets to me quickly.