A senior employee at work, who is so beautiful that just looking at each other makes me nervous, asked me out on a date this weekend, just the two of us. She asked me to go on a date with her this weekend, just the two of us. At first, I refused, feeling bad for her, but... the words "first and last" made me give in and I said yes. Moreover, I heard that the date was to be held under a mysterious rule: "If you get an erection, we'll go to a hotel. On the day of the date, I was forced to kiss her at golf, billiards, shopping, bedrock baths, and all sorts of places, and there was no way I could hold back my erection... 目があうだけでドキドキするほど美人な会社の先輩に『今週末、二人きりでデートして欲しい。』と誘われた。最初は、彼女に悪いと思って断ったが…最初で最後という言葉に負けてついついＯＫしてしまった。しかもそのデートは、《勃起したらホテルに行く》という謎のルールで行われるらしい。そしてデート当日、ゴルフ、ビリヤード、ショッピング、岩盤浴、あらゆる場所でキスを迫られた僕は、勃起を我慢できるはずもなく…。