Is it normal i had raging sex after smoking weed with my girlfriend?

Basically, my girlfriend wanted to try weed, she was more or less "A good girl" during most of her life when she found out i smoke it with my friends sometimes, she wanted to try it as part of her "bucket list". My grandad owns a huge farm, so i took her to a quiet field, had a picnic, "blazed up a doobey" as you tend to do.
She had some, I had some. Then for some reason or another, we had raging, full frontal, hardcore sex no clothes or nothing, in the middle of an open field.

I tell you, it would have made some dog walkers day "IF" one just happened to stroll by the public footpath.

It was a one off. But is this normal? hahaha.