As Isaac slept peacefully, a stranger passed into the barrier, unaffected by the protective ward's magic. Isaac was alerted to the presence of another being inside his safe haven and immediately jumped awake and put on under armor before prepared for battle.
Isaac lept from his tent, preparing to strike the adversary, only to stop when he saw a naked man - face and all - standing before him. Isaac was still nervous about this strange man.
"Who are you?" Isaac forcefully yelled. "Answer truthfully if you wish to live!"
"My name is Nathan. I'm a sorceror from the magic institute. My team and I were sent into these depths to study the magic within the crypt, but we were ambushed by these beasts. All my friends either perished or joined the ranks of the demons within here. I promise you I am still human - I am not corrupted!" Nathan replied.
Isaac couldn't sense any sort of evil emanating from Nathan, so he laid down his weapon and returned to put some clothing over this strange man before sitting down with this man to interrogate him.
The two talked about their respective missions, both exchanging their knowledge and experience thus far. Isaac withheld his loss of genitals from Nathan out of embarrassment - seeing a man with a penis was strange now for Isaac, especially someone so well endowed having a flaccid 7 inch penis like Nathan.
After their conversation, Nathan agreed to join Isaac in his mission. Having a skilled spellcaster would do Isaac a lot of good.
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As the two roused for their final day of action, Nathan motioned to Isaac in his armor,
"Oh before we rest, let me inscribe this charm onto your armor. It gives the user more vigor, more strength. I learned it before I left for this mission" Nathan said as he imbued Isaac's armor with a magic light.
The light seeped deep into Isaac's body, giving him a flush of warmth that was strangely centered around his pussy. He suddenly blushed as he was finding Nathan more and more attractive, making Isaac aroused!
"How does this magic work?" Isaac asked, holding back the pleasure he was feeling and the arousal caused by Nathan's presence.
"Oh simple, it amplifies the effect of the user's sexual organs. For men their testosterone is enhanced and women have their estrogen enhanced, basically improving their role as their gender." Nathan replied
Isaac was a bit nervous. The spell was making him think like a women and have the same impulses - even Isaac's nipples were feeling hard and aroused by the charm.
Still, Isaac could not let Nathan know about his predicament, they had far more important matters to attend to.