Tsundere Onii-chan Breast Massage

*imouto means "little sister" in Japanese. Pronounced ee-MOH-toh*

Wow, imouto...your breasts have gotten so big over the last year. I'm actually impressed. You went from a B cup all the way to a DD...looks like the hormones I slipped into your tea all this time have paid off. (beat) Oh, you didn't notice it tasting funny at all? (chuckle) Even better.
Didn't you wonder why you were getting so big? (beat) You mentioned you wished you were bigger...I was just looking out for you. You're not mad, are you? Come on, be grateful. I did a really nice thing here. (pause; an idea)

Know what helps big breasts? A massage.(beat)
Don't worry. It's not like I'm doing it because I'm into you or anything. I'm not a pervert.
Come sit here in my lap and lean back into me. Just close your eyes and relax.
Feel my hands on your shoulders, running down your arms. (beat) I'm going to start now, okay?

(gradually get breathier as you get more and more turned on)
(you've been interested in her all this time but you've internally struggled with it for years)
Don't get the wrong idea. I'm not interested in you, even now with your huge breasts.
I did this solely out of brotherly love. I don't enjoy touching my little sister's tits, flicking her nipples and feeling her squirm beneath me.
(beat; annoyance)...Hey.
This would be a lot easier if you wouldn't slouch. If you're going to do that, at least lie down so I can massage you properly. I'm not about to do this halfheartedly.
(beat) Don't worry about me being on top of you. This is only to make it easier on me. I'm not into incest; that's disgusting. I can't look at you as my girlfriend - you're family.

Stop objecting, I'm just giving you a massage.
It's like a back massage...just...you know, not on your back. Like I said before, I'm not a pervert, so you don't have to be on guard about whether or not I'll get a boner. You hold absolutely no sex appeal to me, got it? I'm just doing this as a favor to you. (beat) I care about you, but I'm not sexually attracted to you, understand? I'd never once think about fucking you...never have, never will.

You're not my type anyway. I only get off to women with giant tits. DD is fine - I guess - but you're not really a woman until you have G cups or higher. Aside from that, you're such a needy little crybaby. (beat) Taking care of you is such a hassle. It's so bad that I can't even find time to date because of you. Every time I leave, you always follow me to the door to say "be careful out there" - and you always meet me again spouting, "welcome home!" like some kind of excited puppy. It's ANYTHING but cute.

The last year has been a nightmare...that's why I decided to start spiking your tea. (long pause)

(exasperation) God you still don't get it, do you?

...It's you, dummy.
(vulnerable, hesitant) You're...the one I fantasize about.
I want to touch your breasts, wrap my arms around your waist, hold you tight every night, and make you feel loved.
I didn't know how to say it, but we're in this weird situation where I'm massaging your tits and I just can't help but feel stupid and brave and hopeful.

I can take care of you for the rest of your life if you want. What do you say?