Lines that immediately get you excited

>Tell me, why do you [fight, sing, etc.]?

>What are you going to do? Fight me?
>Gets punched few seconds later.

TODOMEDA

>Demon Lord

"Makasete," especially when they back it up with putting a hand on the MC's shoulder

>Your evil... ends here.

KAKUGO

KURAE

>iya yome ni ikenai! seknin totte!

>I wanted to give it to someone I love

KIMI WA
OWARIDAAAAAAAA

>IT'S THE CLIMAX

[Butchered German]

お兄ちゃんが一番大好き！

>YURUSAN!

KISAMAAAAAAAAAAAAAAAAAAA

Any line said through moaning sounds.

>b-but it shouldn't be possible!

>It's time to use THAT

I recognize that buldge

>The truth is... I, about you...

Then of course

>Eh? Nandatte?

Gets me excited in the wrong sort of way.

>Female using "Ore" pronouns.
>"At this moment...!"

...

>But we're both girls!

Any character using Watakushi

...

>I have been waited a long time for this.
>For a strong opponent?
>No. For a place to finally die so I can rest.

>The thing is... I predicted you would do that.
>NANI?

>DOSTEDT

KAKATTE KOI

>Like a puppet with strings cut
>Smell of ammonia
>Wanted to trash about but couldn't
>Items so expensive - one wouldn't be able to afford it even with life' worth of work
>Umu, I understand nothing
>Sasuga
>B-bakana
>Arienai

>I'm gonna get pregnant!

>If you don't do X - I'm telling the police

I love it when characters say they are going to beat the stupid out of them.

>It's not over yet!
>[insert_opponent's_name_while_screaming]
>Don't you dare look down on me!

>she is my osananajimi

>even so, I...

Eh? EEHHHHHHHHHHHHHHHHHHHHH?!

>yaa gomen gomen

>H-HAYAI
always gets me