POV: My friend's sister wants to take my virginity.

I came to visit my new friend so that he would help me with mathematics. I was surprised when his half-sister opened the door and he wasn't home at all. She invited me to wait for him at their house. During the conversation, she pulled my secret out of me - I am a virgin. And coincidentally, this is her main fetish. Now she took me seriously, teased me and offered to take my virginity while we were waiting for my new friend.