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.
Alright Ill spend some time to translate for a bit:
Guy "I am going to f my sister she is drunk I am going to put my dick in"
Guy "
Girl "What are you doing eric"
Guy "you are drunk i am going to
Girl " something about her boyfriend
Guy should I fuck you
girl no eric its bad no no no no...my boyfriend already fucked
guy can i put it just a little bit
girl no no no what are you doing
guy just a little bit
girl no no no
guy just the type just a little bit
girl just a little bit no no no///what are you doing don't fuck me
(When he puts it in all the way)
girl okay give it to me you already warmed me up give it to me
guy yes yes
girl do you remember when you woke me up before
guy
girl okay fuck me brother
doggystyle
girl my boyfriend already fucked me
guy do you remember when i fed you when we were s
girl yes i remember when you put it in me
girl aye yes so good