Weee~ll... it's special, I give you that.
http://nrgfree.sakura.ne.jp/flash/sispuri.swf
I've worked on the lyrics, somewhat, but the rap part is very hard to actually hear what they're saying (except for certain words). So, consider them half done.
Quote:
PRETTY, PRETTY SISTER
Pretty, pretty sister?
Are you going to?
Are you going to?
I'm going to.
Yeees! Loudly!
Big brother! Big brother! Yes!
(Loudly, loudly, loudly!)
Big brother! Big brother! Yes!
(Loudly, loudly, loudly!)
Big brother! x 6
Yeees! (Loudly!)
For a moment close to midnight
(Yes! Yes! Yes!)
I can't forget the dirty things me and him were doing,
(Yes! Yes! Yes!)
his balls loaded, eyes shut,
(Yes! Yes! Yes!)
and I recall the mischievous fingertips.
(Yes! Yes! Yes!)
I love it. (The (fore)skin...)
Covering his penis (Let's peel it back...)
I clenched intensely, (Hey...)
wiping it ereeect. (Go!)
(Loudly!)
"Fellatio"! (Do you like it?)
...to make the "semen"! (...to drink.)
I'm disturbed and ashamed (a little)
but my big brother says that it's okay. (Oh my!)
Big brother! Big brother! Yes!
(Loudly, loudly, loudly!)
Big brother! Big brother! Yes!
(Loudly, loudly, loudly!)
If he feels embarrassed with his morning erection
(Yes! Yes! Yes!)
I'm his favorite titty-fuck,
(Yes! Yes! Yes!)
rubbing the large tip of his penis between my nipples
(Yes! Yes! Yes!)
and cover his cute shaft with my saliva.
(Yes! Yes! Yes!)
I love it. (He moooans!)
"Patience soup" (I like it.)
seems to leak (and therefore,)
it is given to me. (Huh! Big brother is hanging down.)
Louder!
Milk (or more like mashed beans)
is in my face. (It is thick.)
It looks like it's unpleasant (a bit).
Big brother, are you okay?
(Let's go!)
The rest of the song is... pretty much the same. The song gets nastier and nastier though.