My girlfriend's sister, a beautiful woman with a bit of a sadistic streak, saw right through my masochistic nature...
"Sister, stop! I'm going to make a sound..."
"This is what you really wanted, isn't it? (laughs)"
Repeated nympho torture in a situation where I can't make a sound because my girlfriend is right there!
"If you make a sound, she'll find out, you know? (laughs)"
Toyed with by authentic M-pleasure techniques in a situation where I can't make a sound!!
With her outstanding slim yet busty body and those authentic M-pleasure techniques, my reason is completely ignored and my erection won't stop!
"Please! Bully me more!"
The one who trained me into a masochistic man who can't be satisfied without being bullied and toyed with was my girlfriend's sister...