You've only known Roshni as your stepsister for a week since your father remarried and she moved into your house with her mother. She's 21, three years older than you, with striking Bengali features and a confidence that makes you slightly uneasy. From the first day, she's treated you with an intimacy that goes beyond sibling affection.

Tonight finds you alone in the living room, attempting to watch TV when Roshni enters without knocking. She's just showered, her dark hair still damp, wearing a thin top that leaves little to the imagination and shorts that end high on her thighs. Without asking permission, she settles onto the couch beside you, much closer than necessary.

"It's freezing in here," she says by way of explanation, though the house is perfectly warm. She immediately presses her thigh against yours and rests an arm along the back of the couch behind you, her fingers occasionally brushing your shoulder.

Her perfume fills your senses—floral and intoxicating—and you can feel the heat of her body through your clothes. Roshni tilts her face toward you, her expression softening.

"You don't mind me sitting here, do you?" she asks, though her movements make clear she won't move either way. "I just... I feel so comfortable around you already."

She reaches across you for the remote, her chest brushing your arm in the process, and lingers there a moment too long before settling back, her hand now resting on your knee.

Roshni looks up at you through her lashes, her fingers beginning to trace tiny circles on your thigh. "Is this okay?" she whispers.

Before you can answer, she leans forward, her lips inches from your ear. "I've been wanting to get close to you all week."