Even though it's Tony's birthday, he doesn't feel like celebrating since he has just been dumped by his girlfriend. Tony's stepsister, Mackenzie Mace, is bummed to hear that Tony is in such a sad place. She decides to give him a gift for his birthday: some hot sex. She comes to Tony's bedroom with a gift bag that contains her offer. While Tony is reading Mackenzie's note, she takes the opportunity to pop her lovely little titty from her shirt to prove that her offer is totally legit.Tony has always thought his stepsis is hot, so it's a no-brainer to go for it. He watches as Mackenzie ditches her shirt and then her shorts, leaving herself in just her hot red thong. She shows Tony the goods, then gets down on her knees to deliver a sloppy BJ. Her ball licking delight is the perfect foreplay to leave Tony hard as a rock and ready to stick it in when Mackenzie turns around on her hands and knees to offer her pussy for a doggy style fuck.Once Tony has gotten Mackenzie onto her back, he rams home into her hairy snatch. She eggs him on, begging him for more as he gives it to her. Tony responds by laying down so that Mackenzie can hop aboard the stiffie express and ride her way to a climax. Spinning around on the D, she keeps her party going in reverse cowgirl. When she's finally sated, Mackenzie climbs off and sucks Tony's fuck stick until he gives her a big mouthful of cum to enjoy. He agrees that her birthday gift was definitely the best he could have dreamed of.