[ROE-495] I lost to the temptation of my pure and cute student’s giant cock. After school… at school…, secretly… many times…, I ended up having creampie sex.

I suppose it is a matter of perspective. The average japanese has never seen a BBC. They have seen pictures… but there are pictures of unicorns. Until you see one in real life, it’s just so much propaganda.
So they measure size from what they have actually seen… in real life, and this is from the average to large Japanese penis.
Let’s be honest. If a real BBC went to Japan, he would have no sex life worth mentioning. Females would flee, shouting Gojira! Gojira! What self respecting female would allow herself to be demolished inside? Used to japanese cocks, a BBC would be pure agony. I mean, the average american female, cannot take BBC without a warm-up/break-in period.