There is no fucking way to justify her behavior
This anime should not exist
>>153101987
Teenage sexual confusion.
>>153101987
You're supposed to masturbate when these scenes come up you fag
>>153101987
There is a logic though. She wants to make oni-chan jealous and feel bad for "losing" her.
>>153102158
Losing what?
No one is interested in fucking his little sister
>>153101987
She's a dumb whore
Teenage girls are dumb.
>>153102191
They are not related in any way dumbass