【13min】My girlfriend's rebellious little sister is actually a lustful kitten who enjoys self-pleasure?!

Because my girlfriend has been working abroad long-term
So I often go to her house alone to clean and tidy up the place
That's also why I frequently run into her twin sister
Except the sister has more tattoos on her body
The two of them are really similar in both appearance and personality
Until one time I found out that my sister was actually lying on my girlfriend's bed, completely naked and pleasuring herself
Only then did I realize
Oh... so this aspect is exactly the same too...