The guy is lucky with his sister - she is a nipple. She's ready to open her mouth for him to stick it in her. Apparently she serves him regularly, because he no longer feels affection for her, but fucks her like a street whore - rough and bold. However, she seems to like this treatment.
That redhead planned the intimate sequel herself. Such a hottie will not leave any girl indifferent. It's a shame that the external content does not match the internal. For a redheaded beauty she has too cold temperament.