Step Sis Begs Huge Cock Lesson Now Outfucks GF Gushing Cum Explosion

My girlfriend's little sister Lil Elle, that 18 year cute blonde Russian babe with massive boobs and a big ass, cornered me one night while her big sis was out. She confessed it was her first time and begged me to teach her everything about sex because she wanted to be perfect for some guy. I knew it was taboo cheating but her seductive eyes and those huge tits spilling out of her top made me say yes. In POV I watched her drop to her knees and wrap her soft lips around my huge cock for her first blowjob, slurping hungrily as she learned to deepthroat. She begged for a titty fuck next so I slid my big dick between her big boobs, thrusting hard while she licked the tip oozing precum. Tension built as she climbed on top for reverse cowgirl, her big ass bouncing wildly on my condom-covered cock in amateur HD style. I pounded her hard and fast, her moans turning to screams as her tight pussy gripped me like a vice in this step fantasy fuck. She rode me faster than her sister ever could, her verified amateur body shaking with every brutal thrust. Climax hit when I ripped off the condom and she spun around for a blowjob cum in mouth explosion, gulping down ropes of hot cum while her eyes rolled back. In the afterglow she whispered she does it better than her big sis now and wants more oops sessions behind her back. Her taboo addiction had just begun and my girlfriend would never know how her little sis stole my cock forever.