[DOCD-032] 『Did you do it as I taught you? Shall we check?』 Although I finally got a girlfriend, I was too anxious to take the first step in our first intimate encounter. Seeing this, my girlfriend's best friend offered to guide me through it → thanks to her, I succeeded in having an intimate moment with my girlfriend! "Did you do it properly? Shall I check with you?" With the help of my girlfriend's thoughtful best friend, step by step...