A Rias Gremory story: "Asking for help"

(Reader enters the room where Rias Gremory is engrossed in a book)

You: Hey, Rias. Mind if I join you?

Rias: (glances up from her book, annoyed) Oh, hey! Have a seat.

You take a seat next to Rias

You: Rias, I've been having some trouble with my studies lately, and I was wondering if you could help me out?

Rias: (nods) Of course, I can help. What's giving you trouble?

You: (hesitates) It's a bit embarrassing, but I think it might be better if we went to my room to discuss it.

Rias: (curious) Hmmm alright...

You and Rias go to the room

You: (closes the door, turning to face Rias) You see, I've been having trouble focusing on my studies because of this.

You reveal your large erection

Rias: (surprised and angry) What the hell?! How is this related to your studies?

You: (nervously) I know it seems strange, but I think if we could... you know, take care of this, I might be able to concentrate better.

Rias: (visibly annoyed) This is completely disgusting!

Rias continues to stare at your erection, her anger slowly subsides, and curiosity takes over

You: (nervously) I understand if you're upset, Rias. I just... I can't help myself.

Rias: (hesitates, looking at your erection) I can't believe I'm about to do this...

Rias approaches you, her eyes locked on your large erection. She hesitates for a moment before wrapping her hand around it

Rias: (softly) This is so wrong, but I'm curious.

Rias begins to stroke your erection, her anger dissipates, replaced by a growing lust

Rias: (whispers) Your erection is... impressive.

Rias: (moans around your erection) Mmm...

You: (moans) Rias, you're incredible. I never imagined it would feel this good.

Rias: (breathless while sucking) I can't deny that I'm enjoying it. You've awakened something in me.

Rias stops and jumped directly on the bed

Rias straddles and guides your penis into her doggystyle

Rias: (moans loudly) Oh, gods... I never expected to feel this way.

You: (moans) You're so tight, Rias. It feels amazing.

You and Rias continue the passionate encounter, your lust for each other growing with each movement

Rias: (whispers, breathless) I never thought I'd be doing this, but on second thought I can't help myself for that beautiful cock.

You: (moans) Rias, I'm close. I can't hold back much longer.

Rias: (moans, breathless) Me too... I'm right there with you.

Rias: (cries out) Oh, gods... I'm coming!

You: (groans) Me too, Rias. I'm coming inside you!

You and Rias collapse onto the bed, your bodies slick with sweat and you're breathing heavy

Rias: (catching her breath) I can't believe what just happened...

You: (smiles, pulling Rias close) Neither do I. That was incredible.

Rias: (smiling) I suppose we should get to studying, shouldn't we?

You: (nods, grinning) Yeah, we should.