She first wants way, WAY more context!

"You heard him, sweetie!" Manuela giggled, amused. "He wanted to know if you wanted to join his harem!"

"I heard what he said!" Dorothea replied, going deep red in the face, Sothis cackling nearby, finding her reaction hilarious. "I'm just stunned! Who just comes out of left field and asks a question like that!? Who even has a harem!?"

"That would be him," Manuela quipped. "I, along with Sothis, are a part of his harem currently, and trust me, it has more than enough perks to be worth it!"

"Perks? And... Who the hell is Sothis?" Dorothea spluttered.

"...Sothis, I wish Dorothea could see you," Byleth looked towards where Sothis was, and Dorothea followed his gaze, seeing nothing.

"You got it, Master~!" Sothis chirped, snapping her fingers, and almost immediately, she became visible to the Songstress... Who proceeded to echo her previous reaction.

"Buh-wha!?" she exclaimed again at the scantily clad girl appearing out of nowhere before her.

"Hello there, Sexy~!" Sothis remarked, floating over to Dorothea, and giving her breasts a grope, making her yelp and stagger back. "I'm Sothis, Master Byleth's Sex Genie, and the first member of his harem!" she added.

Dorothea covered her breasts before Sothis could grope her again, making the genie pout, but back off. "...Sex Genie?" Dorothea asked them, before looking at Byleth, her expression wordlessly screaming, "WTF!?"

"How about you explain to her already? Poor girl looks like she's about to have a heart attack," Manuela teased.

Byleth smirked slightly, before he started going into details, about how Sothis used to be just a spirit of sorts in his head, how he had found the Lamp, and how Sothis had become a Genie shortly after. Dorothea listened in rapt attention, looking skeptical.

"...um... That's..." she trailed off, trying to figure out just what to say about this.