Edited using the script from omfgmule's upload at https://e-hentai.org/g/2294833/276f2f8823/
I changed the wording a little bit to help it make a bit more sense and to improve word spacing, etc.

I used images from https://e-hentai.org/s/21ba6f1fc4/2394220-404 and cleaned them of the text being replaced. The text cleaned images are included.

I only have a handful of edits under my belt, and I have more to learn. Let me know what you think.

it´s great, longer words could be placed on their own line as to not split them but great anyway.

Base +6, Brego1 +6, CascadorXX -6

@onionto: The only image that has split words I noticed is page 3, and those words are "Christmas" and "boyfriend". I didn't want to shrink the text size or get the text too close to the edge of the balloon for ease of readability. I actually changed some of the wording to avoid word splitting where I could, but I couldn't think of a better word for those two instances. Although, maybe I could have used "your man's" instead of "your boyrfriend's". I don't know what I could have replaced "Christmas" with.

Base +14

many wish they are the boyfriend even if they say they are the cheating senpai.

Base +7, Mr. Grey +6

003
OG: あの雑魚にクリスマスの夜譲ってやってるんだからココは俺の精子で仕入んでいいよな…？
TL: "I'll give that cuck an early Christmas gift. I can dump my cum in here right?"
ED: he's saying since he has to hand her over to "that cuck" (to reuse the existing TL) he's going to do him a favor and stuff her with sperm

OG: だめです
TL: N/A
ED: she's refusing

OG: カレシ以外のせいしダメですっ…
TL: N/A
ED: she can't have anyone's sperm but her bf's

OG: 腰っ♥ / 押しつけないでっ♥♥
TL: N/A
ED: she's telling him not to press his hips against her

OG: 弱いトコっ…♥♥つぶすのダメっ♥
TL: N/A
ED: she's telling him not to crush her weak spots

OG: カレシ君マゾなんでしょ？俺の種って知ったら喜ぶって♡♡嫌ならあの粗チンで掻き出してもらえば？
TL: "Your boyfriend's the serious type, right? He's gonna love my gift. If it's a problem, why don't you have him scrape it out with his useless prick?"
ED: missing detail at the start, he's calling the boyfriend a masochist and asks if the boyfriend's thankful for guys like him

OG: そっ♥そんなっ♥♥
TL: N/A
ED: she's denying it

OG: イク
TL: N/A
ED: she's cumming

OG: ダメイク
TL: N/A
ED: she can't take it anymore and she's cumming

004
OG: ちんぽふくらんで
TL: N/A
ED: she's talking about his bulging cock

Base +25, Sir_El_Yo +6