@thatonegirl90,
Excitement is an amazing thing, caught un-aware of your "non-inhibitions" is what happened.
Another word for it is squirting but I find that kinda gross
If you want to experience that again, have no inhibitions, be in tune with your body as you were that day, captured in that excitement and yes, discover your G-Spot, perhaps whilst he's away you can google more and experiement personally, I think a woman's body is beautiful and if respected, then anything is possible between two people...
I am a woman by the way.