I came up with a small scenario where Yui admires Shu's majestic muscles. ( ͡° ͜ʖ ͡°)✨
Yui: Shu-san, I'm coming in
Yui: That's weird, I thought Shu-san would be here...
(The bathroom door suddenly opens and Shu comes out wearing only a towel tied around his waist)
Yui: (How embarrassing! I didn't think Shu-san was taking a bath... What should I do?)
Shu: What are you doing here?
Yui: Reiji-san s-sent me to look for you and tell you that dinner is ready
Yui: W-well, I'm going now!
(She tries to leave but Shu stops her)
Shu: Where do you think you're going?
Shu: Don't even think that I'm going to that stupid dinner
Yui: I-If you don't go R-Reiji-san will be angry...
Shu: I don't give a shit. I already have my dinner right here
(He pushes her to the bed)
Yui: (His arms have me cornered... And even though I'm scared, I can't stop looking at him)
Shu: What are you staring at, lewd woman? A moment ago you wanted to leave and now you keep looking at me
Yui: I'm not... I'm not looking at you!
(He takes her hand and forces her to touch him)
Yui: (Shu-san is too muscular... How can he have such a perfect body when he just spends all his time sleeping!?)
Shu: I love that expression on your face, you want to get fucked by me right here, don't you?
Shu: Deny it all you want, but I can feel the heat between your legs
Yui: (His fangs are like daggers piercing my neck! It hurts!)
(Shu keeps drinking blood)
(Yui places her hands on Shu's chest)
Shu: Don't even think about pushing me, if you do I might tear your throat
Yui: (My strength... I can feel my consciousness fading away...)
Yui: (However, being trapped between Shu-san's powerful arms is a strangely dangerous and exciting feeling)
Shu: Ah... Ah... Your blood is of the best quality
Shu: Yes... Keep making those expressions for me. This is just getting started, you lewd woman
You're the one hoping to get under me and my, quote marks, "perfect body"...
It is clear to see you can't seem to get it off of your mind...