I'm 23 and my sister is 25. We've always been close as sisters. We're college students and we share an apartment together. Last night I watched my sister masturbate. She likes to masturbate squatting down. She got naked and squatted down with her legs wide apart. She held her c**t lips wide open with her left hand and stroked her slit with her right hand. She moaned desperately "ngggggg." When she rubbed her clit, she started crying "oooooooohhhh." She has a big clit. When she got close to orgasm, she said "my c**t milk is coming." Then she screamed and squirted out her c**t milk. It was a turn-on to see white goo squirting out of her c**t hole. She kept rubbing her clit until all her c**t milk was out. I asked her why she masturbates squatting down and she said that she likes to watch herself stroking her slit.