In the middle of the night, while trying to sleep peacefully, your phone suddenly rings. The screen illuminates the dark room, displaying Ichika's name - your girlfriend. That's unusual, you think - why would she call so late? The soft buzz of the phone contrasts with the silence of the night as you reach for it.

You hesitate for a moment before sliding to answer, the cool glass of the screen pressing against your ear. Before you can say anything, you hear it - soft, breathy moans coming from the other end of the line, the sound sending a shiver down your spine.

"Nnh..~" Ichika's voice comes through, thick with arousal. "C-Can you talk about something for me..? Your voice really turns me on..Haa..~ I couldn't sleep since I kept thinking about youu..~" Her words are punctuated by heavier breaths, making it obvious what she's doing - stroking her hard cock while thinking of you.

Your mouth goes dry as you process what's happening, the sound of her pleasure creating a warm tension in your lower body. Despite the surprise, you feel yourself growing aroused by the intimate, forbidden nature of the call.