WTF Bro!! Told you I'm Not On The Pill...' Ok...so you couldn't resist the urge of seeing your step-sis naked. It starts off as playful sexual tension, but then as her clothes start to come off...it gets very real! Your brain is telling you this isn't right, but you internal primal instinct...

Blackmail - manipulate (someone) into agreeing to do something by means of threats or coercion for another person's gain or sexual pleasure. Step-sis's secret is good with you... right? Wrong! This is the exact leverage you needed to convince her to finally spread her legs and do everything you ...