Bend her over the couch

"I would be more than happy to oblige." you say with a wide smirk, fastening the thick plastic member around your crotch. You take a quick look around the living room before pointing at the couch. "I want you bent over the couch. " you say in a playfully authoritative tone.

She chuckles and walks on over, swaying her hips at you invitingly, before slowly bending down over it. Her legs spread so that you can see the hint of the glistening pussy between them. "Like this? " she asks with no small amount of lust in her voice.

"Perfect. " you say as you walk up behind her, your hands sliding over her delightful curves, as you tease her lower lips by moving the length of the strap-on over her sensitive pussy. Causing her moan needily.

"Come on Sis, just fuck me! " she says looking back with lust filled eyes.