Hi Zackwater, It's been my experience that they haven’t installed a button next to the hot hub where you can make this just happen on demand yet
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But this Fantasy (not talking about the button now) could happen based on both your abilities to mix it with other couples who have similar interests.
It also wouldn’t hurt to get involved in some of the pool / hot tub / night club group games.
Ultimately though I find it comes down to the females, who really control what’s going to happen or not happen at Desire.