My boyfriend has had pain during urination and ejaculation. We have been only with each other for the past year and neither of us have STIs. The info I have found on the internet makes me believe maybe he has urethritis. My question is, can you cause damage to the urethra during oral sex? I don't want to get too personal, so I will leave it alone, but I want to know, can you cause damage due to any force to the urethral opening?

Recently I have discovered if I change the settings on my shower head so the water pressure is harder and faster it works wonderfully as a tool for masturbation. My question is, is there any health risks for using water for self pleasure? My main concern is getting water in my vagina...could that cause issues? Thank you so much!

Recently there have been creams for women sold over-the-counter to improve sexual enjoyment for women. Are these lotions safe for women and the men who love them, and do they work? I am familiar with a particular lotion called "Viacreme."

My girlfriend and I like to drip hot candle wax on each other. Is that safe? Can there be any damage or anything? I wouldn't exactly want anything bad to happen to either of us down there... Thanks!

When was the first dildo invented and what was it originally used for?

I've seen the recommendations. I've seen the suggestions for do-it-yourself workaround (cutting open a condom, plastic wrap... ). What I *haven't* seen is practical usage advice — how to place the thing effectively, how to overcome the limitations of losing direct contact, how to arrange things to permit vaginal penetration with fingers while still maintaining protection and so on. Best-practice condom use isn't perfectly obvious either, but at the most basic level it's pretty straightforward. If you want to build acceptance for barrier use during cunnilingus, it needs to be at least as clear and/or at least as well-documented.