ロングの子「ほら　腹筋100回！」
ボブの子「がんばれー」

詳しくはCi-enで（一部誰でも閲覧）
https://ci-en.dlsite.com/creator/4565/article/898315

From: https://pixiv.net/artworks/10934241

ロングの子「ほら　腹筋100回！」
男の子「おい待て　100回は無理だろ！！」
ロングの子「100回やるまで退かないからね！」
ボブの子「がんばれー」

男の子（あの……脚の感触が心地よくてですね……）

From: https://ci-en.dlsite.com/creator/4565/article/898315

Long-haired girl: "Here! Do 100 sit-ups!"
Bob-haired girl: "Do your best!"

See more on Ci-en: (Partly available to everyone)
https://ci-en.dlsite.com/creator/4565/article/898315

From: https://pixiv.net/artworks/10934241

Long-haired girl: "Here! Do 100 sit-ups!"
Boy: "Hey, hold on, 100 times is impossible!!"
Long-haired girl: "We're not leaving until you do 100!"
Bob-haired girl: "Do your best!"

Boy: (Um...... my legs are feeling pretty nice, you know......)

From: https://ci-en.dlsite.com/creator/4565/article/898315