Convince her your toy box will suffice

You smile at the thought of drinking a sex change potion, but you think it's a bit over the top. You brush past the bashful young woman, bending over to open the chest of toys at the foot of your bed. You reach into the box and feel a warm, wriggling, fleshy thing. You grasp it and pull it out.

"This is a pervik," you say. "Wizards make them for us, they're very expensive."

You hold the object up, revealing it to be an eyeless creature the same color and texture and roughly the same shape as a large man's prick and balls. Morina shrinks away from the pervik as it squirms in your grasp.

"It lives to please. It's magic, don't worry," you say. "It works exactly like the real thing. You just press it wherever you want it-"

You push the rounded base of the fleshy pervik to a wall and it adheres perfectly. With another press to the large ball sack you release it from the wall.

"-or you can have a friend use it."

You step up to her and slide an arm around her waist. She blushes at the sight of the pervik you are holding up for her to see. The magical creature wriggles slightly, long, but limp. You tease the flaring head and it stiffens immediately.

"Oh my," Morina says and smiles with nervous excitement. "Um, What do we do now?"