My Friend's Big Sis Really Wants Me

My name's Kazuma. It's been a month since I started at my new school after my parents moved for work It's a whole new world, and I've got to make some new friends. Luckily I've met someone who likes the same games as me, so things are going okay...

Then one day he invites me to his house. Things are normal enough, until I need to use the bathroom and open the wrong door. I've stumbled on his sister's room! And she was changing. What could I do but freeze up? She's so hot. And her tits are HUGE.

She doesn't seem to mind the intrusion much, though... she's asking me questions.

Wait, why's she taking off her panties?????

8 base CGs
170 total with variations
Also includes PDF format for viewing on smartphones.