Currently you have it setup to come out the model's HeadAudioSource. You could do that, but a better way would be to have a dedicated AudioSource for Sex SoundFX and leave HeadAudioSource for moans/vocals/etc.
Here is a general overview of how to do it.
Click + Add Atom / Sound / AudioSource
Rename the AudioSource to something dedicated to what it it's for like SexClapsAudioSource, SexSoundsAudioSource, etc. This is good if you want to have more than one AudioSource for different things, you can keep track of what it's for.
That AudioSource will show up with a Move Globe Sphere, move it to the area you want to hear the audio from. So here I move the globe to the model's hip area. Sound will now come from there.
Since you are using AudioRouterAB. What I recommend is put it on an Empty Atom and rename it something like AudioRouterAB or SexSoundsAB or whatever you can keep track of it better with.
Then on Select Audio Source you don't want it to come out the model's head but instead out the AudioSource you just created that is near the hips for example. So I select SexClapsAudioSource.
You can change the mode to PlayNow which means play it no matter what, play it at the same time with something else if needed if more than one audio uses the same source. not a huge issue since it's just one dedicated audio source in this example, but if you want to mix different audio through the same AudioSource later that overlaps it, PlayIfClear will wait until the last audio clip finishes playing, and PlayNow will just play it no matter what.
In you Timeline animation you then will be working with the Targets button and + button next to it. You need to click + and then click "Add triggers track" if you don't have one.
Your "Triggers 1" track will show up in bottom left below Controls for example. You can click the first blank one and click copy and paste it anywhere and have another blank one somewhere if you want. In the example below I just add it around where there is a major hip move. That is usually a good indicator of where connection/penetration will possibly be at. You can put it right at that lined up, or before or after, lined up is usually fine. It's up to you.
When you click on the Trigger it turns white and you will see a green Triggers 1 button in the top right with 0 on it. Click on that green button.
Since you added a bunch of audio into AudioRouterAB, find the name of the Empty Atom you put it on. On mine I named it AudioRouterAB. You then choose the instance of it, I only have one plugin instance so I choose plugin#0. But you could have another instance on the same Empty Atom for other sound types as well.
Then Receiver Target I am just going to choose PlayRandom so it plays a random sound from that list inside it. If there are any I don't want included, I can delete those sounds in AudioRouterAB by clicking the x to the side of them.
You can click the Test button in bottom left to hear what it will sound like when triggered. Then click ok.
Now you will notice your green Triggers button in top right now has a 1 on it. That's because it now has your audio sound that will trigger when you click play and it hits that keyframe. So now what you can do is select it, click copy at the very bottom, and paste it every place in your animations that you see a major change in hip/connection/penetration/etc. that you want to trigger a radom sound to be played, and it will trigger at those exact moments. So you just map the first one and copy/paste it throughout animation.
if you want to organize it, you can click the down arrow to the right of the green trigger button and rename it to what it's for like Claps. It will then rename that trigger track so you know what that sound is for. You can then add more for other things if you want.
If you want to see a more complex example with different audio source types, you can check out Female Squirt Importer....
Randomized squirting out nipples and vagina with synced wet squirt sounds on a model. This uses the same milk squirting out the nipples as in Get Her Pregnant and White Apartment Harem. I took the key framed version from "Get Her Pregnant" and...
hub.virtamate.com
It has multiple different audio sources, uses ParentHoldLink to connect things so they stay in place while the model moves. The plugins are on the AudioSources and it uses RandomSoundFromAB so you can see it done that way as well. Whatever way you prefer. I added it to the hub because it can also be a good starting template. You can reference the buttons on how to trigger those things and just copy those exact triggers from the actual buttons to timeline if you want to use them and delete or hide the UI buttons altogether after.
If I start a scene and I want to do female squirting/sounds I will use an existing template like that so I don't have to start over and connect everything. So that could be something you could use as well or look at.
You could name the model in that scene file the same name as your female model (Girl 1, Person, etc.) and merge load it onto your scene and it will bring in all those audio sources synced up and ready to go to trigger in timeline. If you don't want the LFE vibrator plugin on the model, just delete it off the model first. So if there are no plugins on the model, and it's the same name and you merge load it on your scene, it will put your plugins on your model on the model in Squirt Importer and bring in all the AudioSources already mapped and ready to go.