Reproduction
Sexual Reproduction

Vaginal-Penile
Most common form of reproduction among sentient species, specifically Mammaloid. It is not limited to just Mammaloid Species. Many Sentient non-Mammaloid species have evolve vaginal orifices.
Cloacal-Penile
Generally found in non-Mammaloid species that have a single orifice such as Aquoid, Reptiloid, Sauroid, and Aveoid. However, more evolved or designed members of these taxonomical groups may fall under vaginal-penile reproduction such as O'oxians which are Reptiloids.
Spawning
Species that spawn generally release copious amounts of gametes into a fluid, such as an atmosphere or water. Generally, this is used in stationary species that cannot move on their own.
Hermaphroditic
Hermaphrodites are species that have both binary organs. Often they procreate by one individual assuming one binary role and the other assuming the opposite binary role.