"Shooting sperm inside her pussy like that won't leave any traces, right?" I was seduced by your girlfriend's sister. She has a perfect body, a beautiful face, and a dignified appearance, but deep inside is a wild beast always craving for sex! Whenever my girlfriend is absent, she immediately finds ways to extract all my sperm. To avoid being discovered, she always uses her mouth to suck them all out to the last drop and swallows them. She even hides my sperm by letting me ejaculate inside her uterus! The stimulating sensation, the fear of being discovered makes me even more aroused. She keeps sucking all my sperm, not even leaving a bit for her own sister!"