Alora takes one of the experimental pills, crushes it, and puts it in her step-brother's morning protein shake.
Her step-brother walks into the kitchen, after his morning workout, thanks his step-sister for the protein shake and chugs it.

A short time later...

Her step-brother goes to the bedroom to take a nap.
While walking to the bedroom, his eyes start to lose focus and he feels dizzy and confused.
He sees a figure enter the bathroom (it's Alora taking off her clothes and joining her step-brother in the bed.)
He shakes his head, and focuses his eye...

Alora takes one of the experimental pills, crushes it, and puts it in her step-brother's morning protein shake.
Her step-brother walks into the kitchen, after his morning workout, thanks his step-sister for the protein shake and chugs it.

A short time later...

Her step-brother goes to the bedroom to take a nap.
While walking to the bedroom, his eyes start to lose focus and he feels dizzy and confused.
He sees a figure enter the bathroom (it's Alora taking off her clothes and joining her step-brother in the bed.)
He shakes his head, and focuses his eyes again.
He looks down and sees his step-sister stroking his fully erect cock.
Alora asks her step-brother if he likes her, saying if not, why is your cock so hard for her.
Alora asks her step-brother if he likes what his step-sister is doing to him.
He nearly shouts asking her what she thinks she's doing.
Alora asks him to quiet down, so their foster parents won't hear.
Alora teases her step-brother telling him not to lie about how much he likes this.
She continues to tease him and dirty talk to him as she starts to stoke his cock.
During the handjob, a nock comes from the bedroom door.
On the other side, their foster step-mom tells him to hurry up so she can drive them to school.
She also asks if he's seen his step-sister.
During the conversation, his step-sister stars stroking on his cock extra loud to make him uncomfortable, trying to make the sounds audible for their foster step-mom to hear.
Their foster step-mom goes away, and Alora's step-brother pulls away from her.
Her step-brother objects but she playfully threatens him by saying “what would happen if I shouted and they found us in here like this?”
Step-Brother dumbfounded says “You wouldn't...”
Alora replies mischievously “Wouldn't I? Are you going to risk it?”
Finding that he hasn't felt this horny ever in his life.
Alora starts begging him to cum for her.
He explodes in her hand and she swallows his load.
She goes back to stroking his cock clean, and in between stroke, tells him that he better keep this up for her...
-Fade out-