Gates Motel v.0.55

MC is 18 y.o. guy who had lost his parents 10 years ago and grown up in a family of 5, Norma/trans sis/older and young sister.
Adoptive parents are decent religious people, Norma and Frank Gates. They used to be neighbors and best friends, going to a local church together.
MC lost his father in a car accident. Before dying from cancer his mother asked her best friend to take care of him...
Frank has started to drink, and transformed into a complete jerk, not paying attention to anyone. So Norma was the only parent for all of you - the last five years. Recently you discovered, that Norma struggled Frank's beating - and started to hide her wounds. She didn't tell anyone about her problem, and just lived with it - till Frank's accident. He has died from falling down the stairs completely drunk, and finished his miserable life too quickly and painless. Nevertheless, the pension you received - due to loss of the breadwinner - gave you the chance to start some business.
Norma decided to sell the house and invest almost all the money to buy some motel on the other end of the world.
And that's where you're heading now...
The manor (or 'Psycho house') will keep your kinky secrets under cover. While the motel and the town nearby suppose to provide endless possibilities and diversity of people for sexual adventures.
That's the main plot we are going to start from with possible corrections on the go.