Then you have a really bad understanding on what rape is if you think that a virgin girl having pain during her first time is a great sign of rape.
Like, bruh, just accept you overreached with the word. Don't try to justify it.
The heck are you bringing out rape for? No where in this does it even look like her raped her or she said that.
This is "Sorry I was too rough on you. Look how many bloodstains are on here, it must have been really painful without me realizing." Fucking what do you mean rape.
At this point, it really will just be the icing on the cake if the sister is actually pregnant like one poster thought, and she announces on TV at the end of all this that her own brother impregnated her.