Xander made one extra change. He made it so the girls themselves 
could get what fantasy they wanted, within reason so there wouldn't be 
any evil ideas being made real, to come true as well as the ones he was 
thinking of. Using the Reality and Mind Stones to see if they could be 
happy with their wishes even if he had few choices in granting his own 
wishes.
"Looking good, Xander." said a purring voice which sounded sonic sex 
came from behind him. Turning around, he saw the new Buffy Summers, 
remade by the power of the Gauntlet.
Her breasts enlarged which somehow didn't cause pain or stop her 
moments under a silk white blouse which revealed the seems of her bra. 
Long legs in a tiny shirt ending in high stilleto heels designer leather
 boots. Pouty lips which invited various things to them. Silky shiny 
hair of perfect valley girl blond. Sparkling blue eyes like diamonds 
with a hunger aimed at him in them. White teeth moved out into a 
blinding smile which lit up the room for him.
As she moved up closer to him and placed her hand on his chest with 
it's perfect pink manicure, she spoke up looking at him in the eye, 
"Smell good too, Xander. I was wondering if you could do me a favour?"
"Sure, Buffster. What do you need?" he asked, a part of him, a large part, enjoying this.
"I was wanting to give Dawn and some the Slayerettes some sexual 
education as well as help everyone to learn how to share. I was 
wondering if you could help us out as an... assistant in the program. As
 someone who could help them practice both lessons. But before that, I 
figure we review what we know. With you, me, Faith and Willow." she 
continued, using every trick to enflaming his desire. Which was not hard
 at the moment.
"I thought Willow was gay?"
"Bi now. Most of us are Bi now. Or willing to give it a try with the man we all trust. So are you in?"