This happened a few years ago on a birthday party. Everyone were having fun and drinking outside on the yard. We had a hot tub in the yard and it was getting late so me and my BF decided to go and relax in the tub. I put on my bikini and went in the warm water. My bf joined a few minutes later with 4 other friends.
The water was quite hazy and I felt a little horny so I decided to touch my boyfriends cock through his underwear. Since the water was hazy, no one didn't see what I was up to. My boyfriends cock got bigger by the minute while he was talking with his friends and me stroking his penis. I could see he was having a bit trouble talking.
He couldn't resist anymore and started touching my thighs, moving closer to my pussy. He moved my underwear to the side and started rubbing my clit. I started moving closer to him and slipped his dick out of his underwear. We were rubbing ourselves a few minutes. I was so horny and I needed that dick in me. So i slowly made my way on him.
I was talking to his friends who didn't suspect anything. First I sat on his lap. I started moving closer to his dick which was out of his underwear. I moved my underwear more on the side and slowly pointed his dick into my pussy. The next second it went into me and we were just sitting there without moving and talking to friends. We were afraid that they will see what we are up to but it was dark and the water was hazy. So we sat there like that for a minute and i started grabbing my drink from the side and continued to bounce a little on the water like I was doing that just for fun. But actually I could feel his rock hard penis going in and out of me. I felt so much adrenaline and it was making me so horny. I started going a bit quicker. A few moment later I can feel warm cum inside my pussy. I slowly take his penis out of me and go back to my earlier sitting position. Me and my BF didn't talk about it.
A few years later we played a card game with my BF and a friend who was in the tub. We got a question if we have ever been caught in having sex. Me and my bf both said no, never. His friend told us it was clearly visible what you guys we're doing in front of us 😂