"Really?" Maribelle was a little surprised, though not shocked, to hear that from her daughter. At her age, she'd never spanked anyone before, but her own mother had been a strong proponent of corporal punishment. And though it had been incredibly painful, Maribelle had never objected because she knew it was done out of love and a desire to see her become a better person. The fact that her future self spanked Lucina (and presumably Brady) made perfect sense.
"Well then. I think perhaps my present self should follow your mother's example," Maribelle reasoned. "A long spanking over the knee, bare bottomed, with my hand?" She assumed it was probably that, since that had been the position her mother favored.

The blue haired teenager was a bit surprised at her mother's own surprise, knowing well enough - from her own future mother's stories - about Maribelle's own mother being a firm believer of corporal punishment, but bashfully nodded to further confirm that she has been raised on spankings. Though painful and embarrassing Lucina didn't sound distainful towards said discipline...so perhaps she knows, or at least somewhat understands, that it is done out of love.

'Well then. I think perhaps my present self should follow your mother's example'

"Y-Yes M-Mum..." stutters out the princess' lips before nodding nervously when asked 'long spanking over the knee, bare bottomed, with my hand'. "Ex-Exactly like that..." the blunette softly answers.

"Well then, what are you waiting for?" Maribelle shifted so that her two feet were firmly on the floor. This felt more natural than she expected, almost like she'd done it before. She hadn't, of course, but many things about her future children felt familiar to her though she couldn't explain it. "Bare your bottom and bend over my knee. Come now."

The moment she heard Maribelle's words the blunette quickly straighten up rather sharply, as if use to hearing those very words and naturally reaction to said statement, which may or may not have helped the queen feel more natural at this.

'Bare your bottom and bend over my knee. Come now.'

"Y-Yes Moth-Mother," Lucina stutters out an answer as she quickly lower her bottoms down to her knees before moving her plain white panties - which practically clings onto her soft behind - down to join said bottoms. Once done that the still embarrassed princess makes her way over to her mother and bends over one of her knees, leaving her legs exposed for Maribelle to trap with her other leg if required or desired.

Being that Maribelle had never delivered a spanking, she was expecting the first few blows to be experimental. She'd pay attention to the girl's reaction, the volume of the slaps, and the force against her own palm to gauge how hard to make it. Oh, but first she should remove her riding gloves, shouldn't she? The leather would add an extra sting surely, but for now she needed to see what it was like with a bare hand.
After shedding her gloves, she pumped her fingers into a fist and back out a few times as if to warm up. Then, she raised her arm and swished it around a few times to check the air resistance. When she was satisfied, she draped her left arm over Lucina's back, locking her in place. Finally, she raised her palm skyward, aimed, and flung it down to give her daughter a good first smack.