Dear Doctor, i am quite worried and need some advice please. I went to a strip club last week. All was well until I ended up in a Jacuzzi with a lady. There was no sexual contact of any nature (well only touched her breasts) but my worry is that I don't know who was in the Jacuzzi before us and the liklie-hood that people had sex in it is very good or they may have at least ejaculated in the water. The water was quite warm (at one point too warm to sit for a long time) and from what I can remember seemed like it did contain chemicals (from the smell). At one point I also sat on the edge of the jacuzzi. My question is am I at risk of HIV / std's either from the lady I was with in the jacuzzi or any semen which may have been present in the water. I kept my head above water at all times but was obviously naked in the tub. What if I sat on someone's ejaculate on the side of the tub. I do have a small tear on my anus at present (I know this because it is sore). I also had a raw scratch on my leg which was in the water. I am worried sick so please let me know if there is any risk.