Shower head

My first climax was with the detached pulsating shower head. It so adjustable I get a different experience every time. It has brought my full attention to my clit. I used to finger alot, but now I lie in bed for hours just rubbing. How big can I get it and how long can I last before losing it. I live at home, so I try to keep quite. I want to tongue another girl on her clit to see how big I can make it. This is a new thing and I get horny sharing it. And I am not gay, and have never been with another girl, but the thought gets me.