The idea of mentally merging with his fiancé (or anyone for that matter) made him too nervous to try. Maybe he could try the feature on a pair of guinea pigs later. For now, he decided to keep his and Andrew's minds separate. What surprised him was how many options this choice opened up.
The first option was an obvious one: mental communication. Rather than need to vocally speak to each other, they could do so telepathically.
The second option was control priority. By default, the two of them would share equal control of their body. But this could cause issues if they tried performing actions at the same time, so the option allowed one or the other to be given priority. Alternatively, he could deligate control of certain body parts to certain minds; for example, Josh could give himself exclusive control of the tail. Going even furthur, he could make it so either he or Andrew had no control of the body whatsoever, effectively becoming just a passenger. This feature got Josh thinking of its potential, but he read on.
The last option was the most interesting: mind location. Rather than place both minds in the head, one of the minds could be placed elsewhere in the body, effectively becoming a body part. Curious, Josh tried placing his mind in the left rear foot of this rubber mouse-tiger creature. Upon doing so, he noticed that control priority changed, removing his control of everything except that foot. An additional set of options also opened up, including sensation of body. He could either retain sensation of Josh-Andrew's body, or his entire sense of self would be that foot. He could also set whether he could see, hear, taste, and/or smell as a foot.
Josh was amazed. He had no idea the resort allowed transformations like these. Even as a fan of transformation, he had never considered the possibility of becoming a body part!
Remembering that Andrew's friends were on their way into the resort, Josh started considering his options. Thankfully, while in the transformation void, he had plenty of time to formulate a plan.