I have a few questions about sex with water. My girlfriend is spending the weekend with me this weekend and we are thinking about having sex in the bathtub or something. Has anyone tried this, and if so, how did it go? Do condoms work underwater? Does it matter if the water is cold, cool, warm, or hot? Does the heat effect the condom? What would be the best position? I am guessing the best would be with the girl on top and the man sitting down, but I don't know. I'd like some input. Help?