Why not?

Natsu lay back in the tub. As much as he felt like fucking Lucy right now, she was really trying to entice him. Besides, his idea of a bimbo was that she would be pretty horny all the time. So if he wasn't showing interest then...

Lucy looked at him dejectedly as he lay back.

"Heeeeyyyyy..." she whined, shooting up from her laid back position, her breasts bouncing and glistening, and water spraying Natsu's chest. "You're like, totes ignoring me!"

"I'm not ignoring you. I'm relaxing."

Lucy puffed her cheeks in annoyance again - something that seemed to span between this personality and her normal one. She looked down at his dick and started reaching for it.

"Ah ah! No!" he scolded, as though talking to a pet. Lucy immediately retreated back, crossing her arms.

"Natsuuuuu! Come onnn. You aren't being, like, fair!"

Natsu simply looked at her. She looked back, before putting her hands on her hips and pushing out her chest, turning her nose up.

"You have a like, totally sexy, busty slut here ready to like, fuck you harder than you've ever been fucked and you're sitting here being like, boring! At least let me, like, stuff your dick in my mouth or something!"