Sneezes can mean many different things. You could have an allergy; you might be coming down with a cold or a bit of dust has tickled your nose. For some people with a sneeze fetish, sneezes mean arousal. From being turned on by another person sneezing to finding your own sneezes to be totally orgasmic, if you have a sneeze fetish, you’re not going to be afraid of catching a cold and you’ll be happy to share round the germs with others. Hay fever season is the best time of year for a person who loves a sneeze. Share your sneeze fetish stories on the forums at fetish.com to find other kinksters like you.
Snowballing is when one person passes on the cum from their mouth to another, increasing the spit and the 'snowball' effect. For some of the swappers (particularly those who choose to be sexually submissive) this can be a particularly erotic activity to take part in - and the other side of the equation gets to enjoy the sight of their partners loving being covered in their semen. Some people also enjoy participating in the swapping of their own ejaculate, which can be a fun thing to experiment with if the idea appeals to you!
So there are two main issues with sex in the water. One is that it tends to wash away a lot of the essential lubrication, meaning that things can get a little paradoxically dry down there - and the other is that water's natural buoyancy means it can be a bit more difficult than you might imagine getting everything in place. The trick is to bring some water-based lube in with you, anchor yourself on the side of the pool and keep experimenting till you find something that works for you and your partner! This is an experience well worth having, though it might take a little while to get it right.