Not that i condone in any way sexual abuse or rape... but the way Tsukasa acts surely bring the most primitive feelings in any person. If u gonna provoke someone u're better be able to be in full control. Just hope that flashback Tsukasa had didnt went too far from what we seen. Thats awful.
No matter how a boy seems submissive hes still a boy... if she acts like she just did with Yui, that flashback of her is something she incited. Also, i wonder if Yui didnt show up that time if she wasnt about to be assaulted again.
Either way, even if not directly father and daughter being aroused like that is too weird... her father should had look for a professional.