To be really honest, the sounds I can play (for some reason I can't play the .oggs) sound as though they're from some Asian porn. And they sound rather strange, as if they're recorded in a room. I don't know if I like it, but thanks for the effort.
The ones you can play are no doubt the WAV files, which are from a game mod I did 12 years ago for the original Doom game. The technology of the time was such that they are 8bit files, hence the 'roominess'. The .ogg files sound 'much' cleaner. Likely you need a specialized editor to listen to them such as Audacity or Wavepad. Those older WAV files are primarily placeholders as ultimately I would like to replace them with higher quality sounds. We'll see how long my motivation lasts. As I said earlier, use the ones you like, ignore the others.
How did you record this?
There are a lot of resources on the web where one can download free, public domain sound effects. Most of them are not perfectly suited for our needs. That is however, where sound editing software comes in. For instance, take a sound clip of a woman faking an orgasm, building into a crescendo. Take a beginning low moan, something mid range and the biggest peak sound of the orgasm, now reverse them and space them with inhalation gasps. Add to the start of that a cut sound and blood/guts squirting sound effect and presto, death sound. It's not quite as easy as that, one still has to do a lot of picking and choosing and fiddling with the details, but there's the rub.
The downside to this technique is as Fei Dao noted, that the sounds can wind up sounding "strangely orgasmic". My observation from real life as a paramedic and a 49 year old with a fair amount of experience, is that pain sounds and orgasm sounds are virtually the same.