Alex Jett and Ryder Rey are a newly blended family, and Alex cannot get over how hot his stepsister is. He can't help but perv on her. Today, Alex accidentally on purpose drops his fork for an excuse to slide underneath the table as they are eating. Once he's down there, he uses his cell phone to snap photos of Alex's panties beneath her miniskirt. Although Ryder has let Alex's perviness go so far, she can't ignore the latest transgression. She insists that Alex delete the pictures from his phone. When Alex pushes back, Ryder makes him a deal that if deletes the phone she'll give him a challenge: If Alex can bust a nut that goes three whole feet, Ryder will fuck him. Alex has until tomorrow night to prepare. Alex agrees and deletes the photos.

The next day, Alex receives a package containing a huge squirting dildo that he thinks is guaranteed to give Ryder the show she's looking for. Ryder almost finds him out, but Alex manages to hide the package. When it comes time for Alex to take on Ryder's challenge, he secretly puts the fake dick on and gives it a few strokes for show. He claims that he needs some help from his stepsister, so Ryder flashes her titties and even gets down in a crouch three feet away to receive Alex's cum shot. The dildo delivers, soaking Ryder in what she thinks is Alex's jizz. She finds herself unbelievably turned on, something she didn't expect from her stepbro. He has met the conditions of her challenge, so she's happy to dish up her end of the bargain immediately.

Peeling her shorts down, she gets into bed and wiggles her ass to invite him to fuck her in doggy. Alex isn't about to deny himself that pleasure. He discreetly puts the fake dick away and shoves himself balls deep into Ryder's greedy twat with the real deal. Ryder doesn't seem to notice that the dick is different, even when Alex rolls onto his back and lets Ryder suck her juices right off his shaft. She is thrilled with what Alex has, from deep throating it to riding it in cowgirl and reverse cowgirl. For his part, Alex lets Ryder have her way with him as he squeezes that big ass and then slips a finger into her anus. That drives Ryder wild! She rolls onto her back and spreads herself wide open for Alex to stick it in her and get her off one more time. Throwing her head back in pure bliss, Ryder rides out her orgasm and then watches with greedy eyes as Alex pulls out to cover her belly in a cum shot of his own.