Nudist Erections and Naturist Etiquette

I tried to cover it up thinking she would be offended, but she slid over and started to stroke it gently. I let her carry on as it was realy nice and she was beautiful and naked. Eventually I couldn't hold back and came powerfully, shooting semen out. SOme of it even hit her tits which was funny and sexy. There have been several occasions when I've been on the nude beach with my better half and she has teased my cock into an erection.