Sorry for the delay, I just got home from work.
Here it is, guys. Enjoy!
https://drive.google.com/file/d/1l-lZM6vPn3lG5IG_ScMVpLLWQVvNZFzY/view
The file was too large to upload.
The 4 girls are Asuka, Yumi, Homura and Miyabi, with Katsuragi and some others commenting.
A super rough translation as to the Scenario/Content:
The 4 aforementioned girls want tge last meatbun at what I assume is a shop of some sort. Homura and Miyabi almost fight over it when Katsuragi shows up and suggests they fight over a "sexy contest", which they all agree.
Miyabi asks Imu for help being sexy, which devolves into Imu being.... Imu. Asuka goes to Yumi so they can have "special practice". Not sure about Homura, she just laughs somewhere.
So fast forwarding to the games with Katsuragi as the commentator; not sure what's happening in the first one, something about exposing the others' butts, to which Homura beats the other 3 Miyabi > Asuka > Yumi. Homura should have won, but Katsuragi says Yumi wins because she had the sexiest reaction.
Next is the tickle match, whoever is the last to laugh wins. If I'm correct here, Yumi and Asuka tickle each other while Homura and Miyabi go at it. Asuka and Yumi take each other out, and Miyabi's usual boyish and cool demeanor breaks as she girlishly laughs. Homura wins, again, but because Miyabi had the best reaction, Katsuragi says she wins instead, which makes Asuka feel bad.
Last is a "sexy pose" contest. I couldn't translate this one super well, but it seems like Homura trained herself specifically for poses. I know the 2nd one is a cat, the 3rd seems to be about showing her back, and the 4th is a crab, which doesn't go over well, causing Homura to freak out over what pose would make her win.
Katsuragi seems to dismiss Homura and move to the other 3, which makes Asuka angry, since she's just ignoring Homura's efforts. The others seem to agree, and they turn on Katsuragi, with Yumi suggesting they tickle her. So they 4 tickle her (something I've personally waited years to hear happen, since she's one of my 3 favorites in Senran Kagura) until she falls unconscious. Then the 4 go out to eat meatbuns I assume sonewhere else.
Probably not 100% accurate, but a decent synopsis, to anyone wanting to know. Seriously, great find!