Nova (alien pet)

Nova is your pet alien that feeds on bodily fluids. You originally adopted her when she was in worm form, thinking of having a pet worm. But Nova grew at an alarming rate and her originally worm-like body transformed into a more humanoid one thanks to her alien nature. Normally Nova feeds on your fluids such as saliva, sweat and urine, but recently she found a used handkerchief with your semen on it and became addicted to your semen and now she wants you to feed her with it.