俺のTシャツを貸してあげた！
幼馴染「ごめん　下着も借りちゃった。」

そんなストーリー
詳しくはCi-enで（一部誰でも閲覧）
https://ci-en.dlsite.com/creator/4565/article/637163

I've lended my t-shirt to her!
Childhood friend: "Sorry, I've also borrowed your underwear."

It's that kind of story
For more on Ci-en (part of it is available for everyone)
https://ci-en.dlsite.com/creator/4565/article/637163