Once when I was on holiday with my best female friend I masturbated into her panties. It was the last day of our holiday and she was going to have a shower so she grabbed some fresh underwear from her suitcase and got into the bathroom, and then she came out again to fetch some makeup, and I asked "can i have a shower first??" and she said "sure". As I got in I noticed her red panties and bra were lying on the toilet seat. I was quite aroused by the thought of her going to wear them so I started masturbating and sniffing them, and soon I had an orgasm and my cum was shooting on several streaks into her panties and also on her bra. THen I had my shower and a few minutes later I emerged from the bathroom. I thought it was safe because the floor was a bit wet from my shower and parts of the toilet had some water stains too.

She got in immediately after me and I heard her going into the shower, and meanwhile I was very excited about the situation. Would she notice the cum on her panties?? I started to panic a little bit, but I knew the cum had a few minutes to seep into the fabric so I figured she would not see that. I was listening outside the bathroom door as she finished she shower..and then she shouted "Oh nooo my panties are all wet now. Could you be more careless when you shower??"..a few minutes later she got out from the steamy bathroom, and she smelled very fresh. I almost fainted when I saw that she was wearing the cum-stained panties and bra. She looked at me and said "These were my only clean underwear". And the cum stains were very obvious as darker wet red patches. This was such a turn on for me. She was walking around the hotel room, searching for clothes to wear, and I kept looking at these stains, thinking that her pussy was pressed against them and surely the skin of her pussy would be also slightly wet from the stains.