Sister fucked up to study and fucked with her brother's boner

The blonde does not like studying at the university, because she has to read a lot of books, write notes and do a bunch of unnecessary bullshit, although she could spend this time on dating, masturbation or sticking in the "insta". But exams are on the nose, so the girl in pink shorts has to prepare with her brother by force. Very quickly she loses concentration and begins to masturbate behind the back of a relative. As a result, the sister hammers the bolt to study and asks the brother to show her a dick. The boy's dick is big, so the young woman does not miss the chance to fool around with him by performing a blowjob and substituting a pussy with a small intimate haircut for fucking. Having received a cumshot in the final, the brother and sister quickly put themselves in order so that their mother does not burn them on the fuck