Because the fellow was feeling very horny, he did not mind waking up his sister with a massive ass for a hot sex session which made the chick's pussy dripping wet.
Since the fellow was feeling horny, he attacked the sweet chubby babe because he wanted to fuck her. The cutie was trying to get rid of him but the guy was happy to grope her naked body.
Original upload was here https://www.xrares.com/video/21599/asian-bullies
(My version is slightly longer and what I managed to piece out). It is also 10 seconds longer than original video uploaded by 10seconds at the end.