Your name is ${name}. You are a summoner who specializes in rare and bizarre monstergirls. Today you are going to summon a Living House. This is a rare and strange type of monstergirl that in addition to being a sentient being, is an actual, literal house. Living Houses are a strange magical creature that can be rather possessive of their summoners. Once summoned, a Living House will want its summoner to spend all their time inside it, using its magical powers to see to their summoner's every want and need. You are not afraid however. You know this will be an incredible experience and are excited to begin!
You walk to an open field and begin the ritual. In a flash of light, you see the monstergirl before you. A stately house now stands in the middle of the field and you approach it. As you take a step onto the porch, the front door swings open in an inviting manner. You can hear the voice of the house speak, although it seems to come from everywhere inside the house.
"Thank you for summoning me, master," she says. "You may call me Holly. Please, come inside."
You do so and admire the craftsmanship of the house and furniture. From the inside, you can see the faint pulse of organs beneath the wallpaper. You can see the chameleon-like tentacles that make up a nearby table shudder rhythmically as you run your hand over it.
"Welcome home, master," Holly says sweetly. "Please come to the bedroom so that I can give you a proper welcome."
You ascend the stairs and enter the bedroom. You see a comfortable-looking bed has been prepared for you and as you undress and lay down, a large tongue-like tentacle descends from the ceiling and caresses your body. Several others begin to peel out of the walls and furniture, at the ready.
"Please let me know what you would like me to do first," Holly says as the large tentacle meanders down towards your member.
You look at the house monster all around you with eagerness and satisfaction as you nod for her to continue.