You can imitate a plot from the movie 'Species II'.
Plot: A male astronaut is parasitized by extraterrestrial life in space and returns to Earth. After the physical examination, he couldn't suppress his sexual desires. Make love in turn with a pair of blond sisters on the hotel bed. After having sex, my sister went to the bathroom and found that her stomach suddenly hurt and swelled up, causing her to give birth to a baby and die. During the process of having sex with a male astronaut, the younger sister suddenly discovered that he was an extraterrestrial creature and shouted for help, "Sister, help!" In the end, she also gave birth to a baby and died.
Here we can change it to: A male astronaut is parasitized by extraterrestrial life in space and returns to Earth (broadcast instead of camera). After the physical examination, he couldn't suppress his sexual desires. Make love in turn with a pair of blond sisters on the hotel bed. After having sex, my sister went to the bathroom and found that her stomach suddenly hurt and swelled up, giving birth to parasite eggs. The male astronaut placed a pillow under his sister's buttocks to increase the chances of conception. During the process of having sex with a male astronaut, my younger sister suddenly discovered that he was an extraterrestrial creature and shouted for help, "Sister, help!" In the end, her belly also swelled and she gave birth to parasite eggs.
Plot: A male astronaut is parasitized by extraterrestrial life in space and returns to Earth. After the physical examination, he couldn't suppress his sexual desires. Make love in turn with a pair of blond sisters on the hotel bed. After having sex, my sister went to the bathroom and found that her stomach suddenly hurt and swelled up, causing her to give birth to a baby and die. During the process of having sex with a male astronaut, the younger sister suddenly discovered that he was an extraterrestrial creature and shouted for help, "Sister, help!" In the end, she also gave birth to a baby and died.
Here we can change it to: A male astronaut is parasitized by extraterrestrial life in space and returns to Earth (broadcast instead of camera). After the physical examination, he couldn't suppress his sexual desires. Make love in turn with a pair of blond sisters on the hotel bed. After having sex, my sister went to the bathroom and found that her stomach suddenly hurt and swelled up, giving birth to parasite eggs. The male astronaut placed a pillow under his sister's buttocks to increase the chances of conception. During the process of having sex with a male astronaut, my younger sister suddenly discovered that he was an extraterrestrial creature and shouted for help, "Sister, help!" In the end, her belly also swelled and she gave birth to parasite eggs.