How kinky?

Request: Bi-curious girl discover her boyfriend’s shapeshifting abilities, and when he offers to shapeshift into someone for some kinky stuff, she chooses her own mom

A year into their relationship, David revealed to his girlfriend, Sarah, that he was a shapeshifter.
“So what do you really look like?” She said, lips quirking up in a smile, clearly incredulous.
“This is what I normally look like,” David said. “But I can become anyone. I know you’ve been bi-curious. I can help you explore that.” He offered.
“Ha, okay, sure.”
“No really,” he said, moving closer. “We could do some really kinky shit.”
“Oh yeah,” she said. “How kinky?”
“How kinky do you want?”
They were both naked, almost pressed body to body, both turned on, though Sarah still didn’t believe David.
“Hmmm. How about you turn into my mom?” She suggested with another laugh.
“Ok.”
Before Sarah could respond David shifted. His body grew leaner, hips slimming, ass growing plumper, two breasts forming on his chest and spilling down heavy and full. His facial features softened and long hair tickled down his back. When it was complete, he was an identical copy of Sarah’s mom, down to the tattoo on her shoulder.
“Whoa, shit!” Sarah jumped back, startled. Then repeated, a little more seductive. “Oh, shit.”
“So what do you–“
She cut him off with a kiss, slipping her hands through his hair and bringing their lips and bodies together. His tits pressed against hers and he reached for her, caressing her young body with her mom’s hands, their bodies growing warmer and wetter until Sarah pushed him to the floor and dove between his legs, tasting her own mom as David squirmed beneath her.

A man on the cusp of despair meets his guardian angel, who transforms him into a woman to show him what his life would have been like if he’d been born that way in It’s a Wond-her-ful Life, available on Body Swap Stories, Smashwords, Amazon, or wherever ebooks are sold. Preview here.