Nagamithunas,
Nagamithunas are half-human, half-serpent couples that are said to live in the ocean's depths and hoard great wealth. They are imaginary figures that decorate the middle row of the Konark Temple, along with other figures like Gajasardula (lion on an elephant) and Naravyala (lion on a man)
Maithuna (Devanagari: मैथुन) is a Sanskrit term for sexual intercourse within Tantra (Tantric sex), or alternatively for the sexual fluids generated or the couple participating in the ritual. It is the most important of the Panchamakara and constitutes the main part of the grand ritual of Tantra also known as Tattva Chakra. Maithuna means the union of opposing forces, underlining the nonduality between human and divine, as well as worldly enjoyment (kama) and spiritual liberation (moksha). Maithuna is a popular icon in ancient Hindu art, portrayed as a couple engaged in physical loving.
Maithuna entails male-female couples and their union in the physical, sexual sense as synonymous with kriya nishpatti (mature cleansing). Just as neither spirit nor matter by itself is effective but both working together bring harmony so is maithuna effective only then when the union is consecrated. The couple become for the time being divine: she is Shakti and he is Shiva, and they confront ultimate reality and experiences bliss through union. The scriptures warn that unless this spiritual transformation occurs, the union is incomplete. However, some writers, sects and schools like Yogananda consider this to be a purely mental and symbolic act, without actual intercourse.
Yet it is possible to experience a form of maithuna not solely just through the physical union. The act can exist on a metaphysical plane with sexual energy penetration, in which the shakti and shakta transfer energy through their subtle bodies as well. It is when this transfer of energy occurs that the couple, incarnated as goddess and god via diminished egos, confronts ultimate reality and experiences bliss through sexual union of the subtle bodies.
