I though the Watatsuki sister are married??? so she should've know that.
Everyone is polyamorous in Gensokyo.
You can get pregnant from a kiss, right...?What's wrong, Yorihime?Don't come any closer!Eh, really!?Eeeh~Mmm~Oh, these kids...No...it's just...You don't like me?W-...Wait...
Wait a minute!